Biochemistry and organic chemistry are related fields that study the chemistry of living organisms and non-living organic matter, respectively.
However, there are some key differences between the two fields in terms of the techniques and conditions used in their experiments.
Solvents: Biochemistry experiments often use aqueous solvents, such as water, which are well suited for biological systems. Organic chemistry experiments, on the other hand, may use a variety of organic solvents, such as ethanol or acetone, depending on the nature of the reaction.
Concentrations: The concentration of reactants and products in biochemistry experiments is often much lower than in organic chemistry experiments. This is because biological systems are typically composed of low concentrations of individual components.
Temperatures: Biochemistry experiments are usually carried out at near-physiological temperatures (37°C) to simulate the conditions in a living organism. Organic chemistry experiments, on the other hand, may be carried out at a wider range of temperatures, depending on the specific reaction requirements.
Speed: Biochemical reactions can often be slower than organic chemical reactions because they are controlled by enzymes and other biological catalysts.
Yields: Biochemical reactions can often have lower yields compared to organic chemical reactions due to the delicate nature of biological systems and the potential for side reactions or interference from other components in the system.
Side Reactions: Biochemical reactions are often more complex than organic chemical reactions because they involve multiple interactions and feedback mechanisms within the biological system. This increases the potential for side reactions and interference, which can affect the overall yield of the reaction.
Internal Control: Biochemical reactions are often regulated by internal control mechanisms, such as feedback inhibition and allosteric regulation, which help to maintain homeostasis within the biological system. This is not typically seen in organic chemical reactions.
In summary, biochemistry and organic chemistry differ in the solvents, concentrations, temperatures, speed, yields, side reactions, and internal control mechanisms used in their experiments, reflecting the unique properties and requirements of the biological and non-living organic systems they study.
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Suppose that an equilibrium has been established at 100°C such that [N₂O4]=2.0M
and [NO₂] 0.65M. The volume of the container is then reduced by half at 100°C..
N₂O.(g) 2NO₂(g)
K= 0.21 at 100°C
a) Calculate the new concentration of each species at the moment the volume is
reduced by half. Calculate the value of Q at that moment.
S- is present at a concentration of 2 10(-13) M, whereas H+ is present at a concentration of 0.05 M.
How does concentration work?The number of moles in relation to the substance's volume is known as the concentration.
H2S is entirely ionized in the solution, as we are all aware of.
the chemical formula H2S ——- 2(H+) + S2-
Concentration = volume / moles
It is discovered that the concentration of H+ ions and H2S are equivalent.
[H+] = [H2S] = 0.05M
Being aware of that
[H+] [OH-] = 10^(-14) (-14)
[OH-] = 10^(-14) / 0.05
[OH-] = 2 × 10^(-13) (-13)
The concentration of S- in is therefore 2 10(-13) M, while the concentration of H+ ion is 0.05M.
The complete question is,
Determine how much of each species there is in an H2S solution with a concentration of 0.05 m.
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a pure titanium cube has an edge length of 2.78 in . how many titanium atoms does it contain? titanium has a density of 4.50 g/cm3 .a pure titanium cube has an edge length of 2.78 in . how many titanium atoms does it contain? titanium has a density of 4.50 g/cm3 .
The number of Titanium atoms that has a density of 4.50 g/cm³ and edge length cube of 2.78 inches equals to 1.99 × 10²⁵atoms
The ratio of a substance's mass to its volume is the formula for determining its density. Density is measured in kilograms per cubic meter. We can use the following formula to get the density of a cube as it is shown here:
Density = Mass of cube ÷ Volume of cube
First, we need to convert the Edge length of cube’s unit
2.78 inches = 7.0612 cm
Mass of Titanium = Density × Volume
Mass = Density x (Edge length)³
Mass = 4.5 g/cm³ × (7.0612 cm³)³
Mass = 1584.33877 g
Moles of Titanium = Mass of Titanium ÷ Molar mass of Titanium
Moles of Titanium = 1584.33877 g ÷ 47.867 g/mol
Moles of Titanium = 33.099 mol
Thus, the number of atoms in Titanium would be:
Atoms of Titanium = 33.099 mol × 6.022×10²³ atoms/mol
Atoms of Titanium = 1.99 × 10²⁵ atoms
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what do these two changes have in common?
Answer: They are both chemical changes.
Explanation:
If 0.025 gram of pb (No3)2 is dissolved in 100 gram of H2o ,what is the concentration of the resulting solution ,in parts per million?
The total mass of the solution is 0.100025 Kg. Hence, the concentration in parts per million is 246.93 ppm.
What is part per million ?Parts per million or ppm is a term used to express the concentration of a solution. The concentration of the a solution can be expressed in terms of the mass , volume or number of moles of the solute in the solution.
ppm of a solution = weight of solute in kg/weight of solution in kg ×10⁶.
Given , mass of solute lead nitrate = 0.025 g
mass of solvent = 100 g.
total mass of the solution = 100 + 0.025 = 100.025.g
mass in kg = 0.100025 Kg.
mass in kg of solute = 0.000025 Kg
ppm of solution = 0.000025 kg/ 0.100025 Kg ×10⁶. = 249.9 ppm.
Therefore, the concentration of the solution in ppm is 249.9 ppm.
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three balloons filled with three different gaseous compounds each have a volume of 22.4, would these ballons have the same mass?
No, the balloons filled with different gaseous compounds will not have the same mass. The mass of a gas is dependent on its density, which is a function of its molar mass and its pressure and temperature.
Different gaseous compounds have different molar masses, and therefore, different densities at a given pressure and temperature. As a result, the mass of a gas depends on the identity of the gas, not just on its volume.For example, if one balloon is filled with hydrogen gas, another with nitrogen gas, and a third with carbon dioxide gas, all at the same pressure and temperature, they will not have the same mass even though they have the same volume. The mass of the hydrogen gas will be the lowest due to its low molar mass, the nitrogen gas will have a higher mass, and the carbon dioxide gas will have the highest mass due to its higher molar mass.
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How many Liters of gas is 3.21 x 1024 molecules of carbon monoxide?
5.33 moles Liters of gas is 3.21 x 1024 molecules of carbon monoxide.
1 mole contains 6.02×[tex]10^{23}[/tex]
X×6.02×[tex]10^{23}[/tex] = 3.21×[tex]10^{24}[/tex]
X= 3.21×[tex]10^{24}[/tex]/6.02×[tex]10^{23}[/tex] = 0.533×10= 5.33 moles
A molecule is a collection of two or greater atoms held together by attractive forces called chemical bonds; relying on context, the term can also or might not consist of ions that fulfill this criterion.
A molecule may be homonuclear, this is, it includes atoms of one chemical element, e.g. atoms inside the oxygen molecule (O2); or it may be heteronuclear, a chemical compound composed of a couple of detail, e.g. water ( hydrogen atoms and one oxygen atom; H2O). within the kinetic theory of gases, the time period molecule is frequently used for any gaseous particle no matter its composition. This relaxes the requirement that a molecule includes extra atoms because the noble gases are character atoms.
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Please Hurry!!!!!!!!!!!! Due tomorrow
6. Acetylene gas (C2H2) reacts with oxygen to produce carbon dioxide and water. When
of acetylene is reacted with O2, 18. 5 g of water is formed.
2 C2H2 (g) + 3 O2 (g) - 2 CO2 (g) + 2 H20 (1)
a) What type of reaction is this?
b) What is the percent yield of this reaction?
a) This is a Combustion reaction.
b) The percentage of yield of this reaction is 51.39%
What is a chemical reaction?
A chemical reaction is the transformation of one or more substances (the reactants) into one or more distinct substances (the products). Chemical elements or chemical compounds make up substances. In a chemical reaction, the atoms that make up the reactants are rearranged to produce various products.
Given chemical reaction
2 C₂H₂ (g) + 3 O₂ (g) - 2 CO₂ (g) + 2 H₂0
A fuel and an oxidant, typically atmospheric oxygen, engage in a high-temperature exothermic redox chemical reaction known as combustion or burning, which results in the production of oxidized, frequently gaseous products in a mixture known as smoke.
In the given reaction produce a gas that is carbon di oxide and water. Thus it is a Combustion reaction.
The mass of H₂O is (2×2) + 16 = 18 grams.
The mass of water in balanced reaction is (2×18) grams = 36 grams
The formula of percent yield is
%yield = (actual yield/theoretical yield) x 100.
Actual yield = 18. 5 g
Theoretical yield = 36 grams
%yield = (18.5/36) x 100
%yield = 51.39%
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What are the benefits of transmuting metals? What can you gain from transmuting metals? What can you lose by transmuting metals.
The benefits of transmuting metals include having access to rare and valuable materials as well as reduced environmental impact.
Some losses from transmuting metals include the high cost and the safety concerns from radiation.
What is transmuting metals ?Transmuting metals involves the transformation of one metal into another by means of nuclear reactions. transmuting metals can provide access to rare and valuable metals that are in short supply, such as platinum and gold.
The process of transmuting metals can be expensive, especially if done on a large scale. The process of transmuting metals involves the use of nuclear reactions, which can pose a risk of radiation exposure.
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Answer:
What are the benefits of transmuting metals?
Although in the present state of science no chemist can say that lead and gold do not contain the same elements.
What can you gain from transmuting metals?
To the alchemists of old, this meant the conversion of one physical substance into another, particularly base metals such as lead into valuable silver and gold.
What can you lose by transmuting metals?
A transmutation entails a change in the structure of atomic nuclei and hence may be induced by a nuclear reaction (q.v.), such as neutron capture, or occur spontaneously by radioactive decay, such as alpha decay and beta decay (qq. v.).
it is limited by the costly and cumbersome need to separate long-lived fission product isotopes before they can undergo transmutation. also, some long-lived fission products, due to their small neutron capture cross sections, are unable to capture enough neutrons for effective transmutation to occur.
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communication between neurons is accomplished using what type of energy?
The communication between neurons is accomplished using energy and the type of energy is electricity and chemicals.
Neurons communicate with each other in connections called synapses, a process called synaptic transmission. At a synapse, one neuron sends a message to another cell, the target neuron. Most synapses are chemical. These synapses communicate using chemical messengers. Other synapses are electrical. At these synapses, ions flow directly between cells. Neurons communicate with each other using electrical events called "action potentials" and chemical neurotransmitters. Neurotransmitters are chemical messengers that the body cannot function with. Their job is to send chemical signals ("messages") from one neuron (nerve cell) to the next target cell. The next target cell could be another nerve cell, muscle cell, or gland. Thus, neurons use both electrical charge and chemicals called ions to communicate with each other.
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Match the conversion factors to the conversions that they would be used for.
The conversion factors to the conversions that they would be used for as follows:
1.moles/grams ⇒ d. mass to mole
2.grams/moles ⇒ a. mole to mass
3.atoms/grams ⇒ e. mass to atom
4.moles/atoms ⇒ c. atoms to mole
5.atoms/moles ⇒ b. moles to atoms
What do you mean by mole ?The term mole is defined as the amount of substance of a system which contains as many elementary entities.
One mole of any substance is equal to 6.023 × 10²³ units of that substance such as atoms, molecules, or ions. The number 6.023 × 10²³ is called as Avogadro's number or Avogadro's constant.
The mole concept can be used to convert between mass and number of particles.
Thus, The conversion factors to the conversions that they would be used for moles/grams ⇒ mass to mole.
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when 0.300 g of an unknown were dissolved in 9.95 g of cyclohexane, a freezing point of depression of 7.51c was measured. assuming the unknown does not dissociate, calculate its molecular mass.
200.7 g/mol is molecular mass when 0.300 g of an unknown were dissolved in 9.95 g of cyclohexane, a freezing point of depression of 7.51c was measured.
The molecular mass of the unknown solute can be calculated using the relationship between the freezing point depression (ΔTf), the molality of the solution (m), and the freezing point depression constant (Kf) of the solvent. The equation is given as ΔTf = Kf * m, where m is the molality of the solution.
The molality of the solution can be calculated as the number of moles of solute divided by the mass of solvent. The number of moles of solute can be calculated as the mass of the unknown solute divided by its molecular mass.
The mass of the unknown solute is given as 0.300 g and the mass of the solvent is 9.95 g. The freezing point depression constant for cyclohexane is known to be 5.04 °C·kg/mol. Substituting these values into the equation, we get:
7.51 °C = 5.04 °C·kg/mol * m
Solving for m, we get:
m = 7.51 °C / 5.04 °C·kg/mol = 1.49 × 10^-3 mol/kg
Finally, the molecular mass of the unknown solute can be calculated as:
molecular mass = (0.300 g) / (1.49 × 10^-3 mol/kg) = 200.7 g/mol.
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What else could you incorporate into this experiment to verify that the gas is responsible for the color change? design an experiment that shows the steps required?
One could incorporate a control experiment using an identical setup but without the gas to confirm that the gas is responsible for the color change.
To verify that the gas is responsible for the color change, a control experiment can be conducted by setting up an identical experiment but without the gas. This would involve placing the same amount of fresh beans in a test tube, adding the same amount of sodium hydroxide solution, and observing the change in color.
If the control experiment does not produce the same results, then it can be concluded that the gas is responsible for the color change. One could also include a test where a different gas, such as carbon dioxide, is added to the experiment and observe if the same color change occurs.
By doing these experiments, one can rule out other factors and prove that the gas is the cause of the change in color.
This question is related to "Lab 9: Cellular Respiration, Experiment 2: Aerobic Respiration in Beans, Post Lab Question."
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explain the mechanism of action of benzodiazepine hypnotics. what is the main site of action to produce this effect?
The main site of action of benzodiazepine hypnotics is various GABA receptors present throughout the CNS.
Benzodiazepines are defined as a group of CNS depressants which induces feelings of calm (anxiolysis), drowsiness and sleep. They act by facilitating the binding strength of the inhibitory neurotransmitter GABA at various GABA receptors throughout the CNS.
Generally, the benzodiazepines act by increasing the affinity of the GABA receptor for its ligand, thereby augmenting the inhibitory effect of a given concentration of GABA.
The anxiolytic effects of Benzodiazepines are believed to be mediated through Benzodiazepines receptors which are located in the limbic system, and myorelaxant properties are mediated through α2-containing receptors present in the spinal cord and motor neurons.
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the half-life of 55cr is about 2.0 hours. the delivery of a sample of this isotope from the reactor to a certain laboratory requires 12 hours. about what mass of such material should be shipped in order that 1.0 mg of 55cr is delivered to the laboratory?
The minimum amount of such material that should be shipped in order that 1.0 mg of 55cr is delivered to the laboratory is 70.71 mg.
Half life of any atom is defined as the total time required for half of the original population of radioactive atoms to decay.
Half life = 2.0 hours
By the formula of half-life,
Half life = 0.693/k
Where,
k is rate constant
k = 0.693/2.0
k = 0.3465 hr⁻¹
Formula to find initial concentration is given as,
ln A/A° = -kt
Where,
A is final concentration
A° is initial concentration
t is time
Taking exponential on both sides we get,
A/A° = e^(-kt)
⇒A° = A/e^(-kt)
⇒A° = 70.71 mg
Hence, the minimum amount of such material that should be shipped in order that 1.0 mg of 55cr is delivered to the laboratory is 70.71 mg.
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describe the simalarities and diffrences between the isotopes 18 o 8 and 16 o 8
Same number of protons and different number of neutrons.
Oxygen is a chemical element with 8 protons. It is capable of achieving a noble gas electronic configuration by accepting two electrons. Oxygen is important for many living organisms.
Oxygen-16 and oxygen-18 differ in the number of neutrons in their nuclei. Oxygen-16 has 8 neutrons, while oxygen-18 has 10 neutrons. Oxygen-16 and oxygen-18 have the same number of protons and electrons. Both neutrons and protons have mass, so changing the number of neutrons changes the mass of oxygen. These elements with different numbers of neutrons are referred to as isotopes. Both oxygen-16 and oxygen-18 are stable isotopes of oxygen and are not radioactive.
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Suppose the following compounds were all dissolved in separate beakers of water in the same manner as the salt in the figure. Which of the resulting solutions would NOT conduct electricity?sucroseammonia (NH3)HCl
The solution of sucrose would not conduct electricity, since sucrose is a non-ionic compound. The solutions of ammonia (NH3) and hydrochloric acid (HCl) would both conduct electricity, since ammonia and HCl are both ionic compounds.
When a substance is dissolved in water, it can form ions that can then conduct electricity. Ions are atoms or molecules that have an electric charge, and ionic compounds are those that contain both positively and negatively charged ions. Non-ionic compounds, such as sucrose, do not form ions when dissolved in water, and so they do not conduct electricity.
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You can’t see the particles that make up the gases in air. How can they have mass?
Answer:
Although air is made up of particles too small to be seen, they still contain mass. These particles are made up of molecules which contain atoms that interact with each other and have a certain amount of mass, as well as kinetic energy. The mass of the gases in air can also be determined by measuring the gravitational pull they exert on objects in the atmosphere.
which of the following are forms of energy? (mark all that apply) group of answer choices potential kinetic chemical heat (temperature) nuclear fusion water vapor
The forms of energy are as follows:
Kinetic energyPotential energyHeat energy (temperature)What is energy?Energy, in physics, refers to the capacity for doing work.
Energy exists in many different forms. Examples of these forms are:
light energyheat energymechanical energygravitational energyelectrical energysound energychemical energynuclear or atomic energyEach form of energy can be converted or changed into the other forms.
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flint glass is 1.662 and 1.674. by how much do the critical angles for red and green light differ in flint glass surrounded by air?
The difference between the critical angles for red and green light is equal to the difference between the sine of the two angles, or sin(θc, red) - sin(θc, green).
What is critical angle?The critical angle is the angle of incidence (angle between the incoming light and the normal to the surface) at which the refracted ray is just grazing the surface and no further refraction occurs. Beyond this angle, the light will start to reflect back into the medium from which it came, and not enter the second medium. The critical angle is determined by the refractive indices of the two media and is dependent on the ratio of their refractive indices.
The critical angle for red light in flint glass surrounded by air is given by the equation sin(θc) = nair/nflint, where nair is the refractive index of air (approximately 1) and nflint is the refractive index of flint glass (1.662 for red light). The critical angle for green light is calculated in the same manner, using the refractive index of flint glass for green light (1.674).
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calculate the equilibrium constant in these questions please.
how many grams of glucose are required to form 180 g of ethanol? express your answer to three significant figures.
352 grams of glucose are required to form 180 g of ethanol.
This is an example of a decomposition reaction. In a decomposition reaction, a single compound breaks down to form two or more new compounds or elements. It requires an energy source such as heat, light or electricity.
Molecular mass of Glucose = 180 g
Molecular mass of ethanol = 46 g
Thus 2 × 46 g = 92 g of ethanol is formed, from 180 g of glucose.
92 gm of ethanol is formed from 180 grams of glucose.
1 gm can be formed using = 180/92 grams of glucose
Now 180 gram of ethanol would require, 352 grams of glucose.
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PLEASE HELP ASAP!!
Earthquakes are usually caused by tectonic plates slipping past each other. An earthquake generates seismic waves of energy that travel through the ground. What would you expect to happen when a seismic wave passes from the ground into a body of water?
A. The waves energy would be absorbed
B. The waves speed would increase or decrease
C. The waves would change from a longitudinal to a transverse wave
(when I put this answer it said it was wrong)
D. The wave would switch from a mechanical wave to an electromagnetic wave
When a seismic wave passes from the ground into a body of water the waves energy would be absorbed. The correct answer is Option A. Seismic waves move more slowly through a liquid than a solid.
What is seismic waveSeismic waves are waves that travel below or over Earth. Explosions, volcanoes and landslides are the reason for the movements of the earth tectonic plates. Seismic waves can be identified by a number of characteristics including the speed the waves travel, the direction that the waves move particles as they pass by, where and where they don't propagate
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which quantity or quantities must always be the same on both sides of a chemical equation? check all that apply.
The sum of the masses of all substances involved
The number of atoms of each kind
What is the law of the conservation of mass?We know that according to the law of the conservation of mass, mass can neither be created or destroyed but can be changed from one form to the other.
This is how we arrive at the general rule that the number of atoms on both sides of the reaction equation would have to be the same for all the atoms that are taking part in the reaction. Thus we can see that the parameters stated above must be the same on both sides.
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Missing parts;
Which quantity or quantities must always be the same on both sides of a chemical equation? Check all that apply. Check all that apply.
the number of molecules of each kind
the sum of the masses of all substances involved
the number of moles of each kind of molecule
the number of atoms of each kind
all organisms require an influx of substances from their habitat to meet their needs for chemical elements and energy.
All organisms require an influx of substances from their habitat to meet their nutritional needs for chemical elements and energy.
What are growth requirements of organisms ?Every organism in the earth needs to meet the basic needs for air, food , water and shelter for their growth. Irrespective of the type of organism and level of development all organisms need an influx of nutrition to their body.
Certain microorganism species are referred to as facultative. These organisms can develop with or without oxygen present. Certain types of bacteria are microaerophilic, which means they can flourish in environments with little oxygen.
The nutrients which are needed in high quantity are called macronutrients. Nutrients which have to be intaken in small quantities or in traces are called micro nutrients or trace nutrients.
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the empirical formula of a compound is ch2. which could not be the molecular formula? group of answer choices c7h14 c4h8 c12h22
The empirical formula of a compound is the simplest whole-number ratio of atoms in a molecule of the compound. the possible empirical formula for ch2 among given choices is c. C12H22.
The molecular formula, on the other hand, gives the actual number of atoms of each element in a molecule of the compound. The molecular formula can be a multiple of the empirical formula.
In this case, the empirical formula of the compound is CH2, which means it contains one carbon atom and two hydrogen atoms.
Therefore, the molecular formula of the compound could be C2H4, C4H8, or any other multiple of CH2, but it cannot be C7H14 or C12H22 because these molecular formulas are not multiples of CH2.
So, the correct answer is: c. C12H22.
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a 2.0 ml pipet transfers the 0.10 m cu2 stock solution to a 25.0 ml volumetric flask which is then diluted. what is the molar concentration of the diluted copper solution?
The 2.0 ml pipet transfers the 0.10 M stock solution to the 25.0 ml volumetric flask which is then diluted. The molar concentration of the diluted copper solution is 0.008 M.
The initial molar concentration, M₁ = 0.10 M
The initial volume , V₁ = 2.0 mL
The final molar concentration, M₂ = ?
The final volume, V₂ = 25.0 mL
The expression is as follows :
M₁ V₁ = M₂ V₂
M₂ = M₁ V₁ / V₂
M₂ = (0.10 × 2 ) / 25
M₂ = 0.008 M
Thus, the molar concentration of the diluted copper solution is 0.008 M.
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in a 50.0-g aqueous solution of methanol, ch4o, the mole fraction of methanol is 0.260. what is the mass of each component?
the mass of methanol is 22.2g and 33.8g [tex]H_2O[/tex]
The idea here is that you need to use the definition of mole fraction to find a relationship between the number of moles of methanol,
, and the number of moles of water.
mole fraction is defined as the ratio between the number of moles of a component i of a solution and the total number of moles present in that solution.
[tex]X_i=\frac{No\: of\: moles\: of\: i}{total \: no \: of \:moles}[/tex]
Now, solution contains methanol, your solute, and water, your solvent. If you take x to be the number of moles of methanol and y to be the number of moles of water,
the mole fraction of methanol will be= [tex]X_{Ch_3oh}=\frac{x}{x+y} =0.270 \rightarrow(1)[/tex]
[tex]X_{Ch_3oh}=\frac{x\times32.042}{1} =32.042x[/tex]
the same for water
[tex]Y_{H_2O}=\frac{y\times18.015}{1} =18.015y[/tex]
You thus have
32.042x +18.015y=56 [tex]\rightarrow(2)[/tex]
now two equations with two unknowns. Use equation (1)
x=0.270 × (x +y)
0.730x=0.270y
x=[tex]\frac{0.270}{0.730}y[/tex]
Plug this into equation (2)
32.042 ([tex]\frac{0.270}{0.730}y[/tex] ) +18.015y=56
11.85y + 18.015y =56
y=[tex]\frac{56}{11.85+18.015}=1.875[/tex]
This will give you
[tex]x=\frac{0.270}{0.730} \times1.875=0.6935[/tex]
Use the molar masses of the two species to convert the number of moles to grams
0.6935 × 32.0412 =22.2g [tex]Ch_3Oh[/tex]
1.875 × 18.015=33.8g [tex]H_2O[/tex]
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if 36.7 g of aluminum is reacted with an excess of oxygen producing 61.0 g of aluminum oxide, what is the percent yield of aluminum oxide?
In this reaction, the theoretical yield of aluminum oxide is 77.27 g. The percent yield of aluminum oxide is 78.7%, which is calculated by dividing the actual yield (61.0 g) by the theoretical yield (77.27 g) and multiplying by 100.
The percent yield of a reaction is an important measure of its efficiency. It is calculated by dividing the actual yield of a product by the theoretical yield and multiplying by 100. A higher percent yield indicates that more of the desired product was produced in the reaction, and that the reaction was more efficient.
The percent yield of a reaction can be affected by several factors, such as the amount of reactants present, the temperature at which the reaction is conducted, and the presence of catalysts or other substances that can affect the rate of the reaction.
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Gas particles do not respond to heat the same way people do. Do you agree with this statement? Why?
Provide an example in your explanation.
Answer in complete sentences
Answer:
I agree with the statement that gas particles do not respond to heat the same way people do. Gas particles do not feel the heat in the same way as people do because they are not conscious and do not have a nervous system that allows them to perceive temperature. Instead, the behavior of gas particles is governed by the laws of thermodynamics, which describe how temperature and energy are related to the movement of particles.
For example, when a gas is heated, the particles within it will gain kinetic energy and move more rapidly. This increased motion causes the gas to expand and, if confined, the pressure within the container will increase. This is because the particles are colliding more frequently and with greater force with the container walls. In contrast, when a person is exposed to heat, their body will respond by sweating, which cools the skin by evaporation. The person may also feel uncomfortable or experience other physiological responses to the heat.
Therefore, while both gas particles and people can be affected by heat, their responses are different due to the fundamental differences in their physical and biological properties.
calculate the work associated with the expansion of a gas from 42.0 l to 79.0 l at a constant pressure of 14.0 atm.
The work associated with the expansion of a gas from 42.0 l to 79.0 l at a constant pressure of 14.0 atm is 518.0 atm-l
What is Work ?Work in chemistry is the energy or force required to perform a chemical reaction or to move an object from one place to another. Work in chemistry is most often associated with physical transformations such as changes in pressure, temperature, or volume. Chemical reactions also require work, such as when a reactant is converted into a product. Work is an important concept in thermodynamics, which is the study of energy and its transformation from one form to another. In thermodynamics, work is measured in joules or calories, which are units of energy. Work is also used to describe the energy needed to break or form chemical bonds, which is the basis of many chemical reactions.
Work = (Pressure)(Change in Volume)
Work = (14.0 atm)(79.0 l - 42.0 l)
Work = (14.0 atm)(37.0 l)
Work = 518.0 atm-l .
The work associated with the expansion of a gas from 42.0 l to 79.0 l at a constant pressure of 14.0 atm is 518.0 atm-l. This is because a pressure-volume expansion requires work, which we can calculate using the formula Work = (Pressure)(Change in Volume). In this case, we multiply the pressure by the change in volume to get the work.
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