The amount, in grams, of [tex]Fe_2O_3[/tex] formed from 16.7 g of Fe and oxygen would be 23.856 grams.
Stoichiometric calculationIron (Fe) combines with oxygen (O2) to form Fe2O3 according to the following equation:
[tex]4Fe + 3O_2 --- > 2Fe_2O_3[/tex]
Mole equivalence of 16.7 g of Fe = 16.7/56 = 0.2982 mol
From the balanced equation of the reaction, the mole ratio of Fe and Fe2O3 is 2:1, thus, the equivalent mole of Fe2O3 produced from 0.2982 mol of Fe would be:
0.2982/2 = 0.1491 mol
Mass of 0.1491 mol Fe2O3 = 0.1491 x 160
= 23.856 grams
In other words, the amount of Fe2O3 formed is 23.856 grams.
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What is the pH of sulfur dioxide?
5.2 is the pH of sulfur dioxide .
What is pH ?
It is defined as the negative logarithm of the concentration of hydrogen ions (H+) in solution. The pH scale runs from 0 to 14, with 7 being neutral,
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Sulfur dioxide is an acidic gas, with a pH of about 4.0.
What is Sulfur dioxide?Sulfur dioxide (SO2) is a colorless, reactive gas with a pungent odor. It is a major air pollutant produced by burning fossil fuels such as coal, oil, and natural gas. These fuels contain sulfur which, when burned, produces sulfur dioxide. This gas is a major component of air pollution and can have serious health impacts. Inhaling sulfur dioxide can irritate the throat, eyes, and lungs and cause asthma attacks, bronchitis, and other respiratory illnesses. It can also lead to acid rain, which damages crops, ecosystems, and human-made structures.
This acidity is due to the presence of SO2 molecules in the atmosphere, which can react with other molecules to form sulfuric acid (H2SO4). As a result, sulfur dioxide can lower the pH of a system, making it more acidic.
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a sample of methane gas is placed in a 3.7 l container at 47oc, the pressure is 0.497 atm. how many moles of ch4 gas is present?
The container contains about 0.697 molecules of CH4 gas.
We must apply the Gas Laws, whose says that PV = nRT, wherein P is just the pressures, Divided by the volume, n represents the size of molecules, R is the classical physics characteristic, and T is the absolute temperature in kelvin, to determine how many moles of CH4 gas are contained in the container.
The temperature must first be converted to Celsius to Kelvin using the formula: 47°C Plus 273.15 Equals 320.15 K.
The molar mass can then be determined using the Ideal Gas Law:
n = (PV)/(RT) = (0.497 as of now * 3.7 L)/(0.0821/molK * 320.15 K) ≈ 0.697 pinches
Therefore, the amount of CH4 methane in the container is roughly 0.697 moles.
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Describe the gas lab conducted in 06. 05 and explain what gas law it Illustrated
The liquid volume is equal to the product of the liquid volume and the solid volume less than the liquid volume. The mass of the solid must be ascertained.
The density of a substance is its mass per unit volume, or more precisely, its volumetric mass density often referred to as specific mass. The most typical representation of density is (the lower case Greek letter rho) Three different densities exist: monotonic density, mass density, area coverage. The solid weighs 76.905 g. Due to that, 81.0 mL is the total volume of the solid and liquid. 40.5 g is the liquid's mass. Liquid density is 0.865 g/mL. Solid density: 2.25 g/mL We must determine the liquid's volume. utilizing the density formula. Fill out the formula with the value We must determine the solid's volume.
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Next O Atoms in Chemical Reactions: Mastery Test
Select the correct answer.
If An atom is shown in blue color represents one atom of nitrogen, and An atom is shown in red color represents one atom of oxygen, which picture
represents 2NO₂?
OA.
B.
c.
O D.
Three atoms two in blue color attached to a red color atom
Two red atoms attached to one red atom
Two molecule structure both of two blue atoms attached to one red atom
Two molecule structure both of two red atoms attached to one blue atom
Reset
Nex
Answer:
option d i think
Explanation:
Given that blue represent one atom of nitrogen and red represent one atom of oxygen, then one atom of (nitrogen dioxide) is represented by 2 red spheres bounded to 1 blue sphere. Therefore, two atoms of are represented by option D.
what is the empirical formula of a compound if its molecular formula is c4 f8 ?
The empirical formula for the chemical having the molecular formula C4F8 is CF2.
This is due to the fact that the empirical formula only represents the simplest ratio of atoms in a compound, which in this case is 1:2.
A chemical compound's empirical formula is the simplest whole-number ratio of its atoms. It indicates the molecular formula's smallest, non-reduced version.
To reach the simplest ratio, divide the number of each type of atom in the molecular formula by the greatest common factor. Because 4 and 8 are both divisible by 4, the empirical formula is C1F2, which can be further simplified to CF2.
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the molality of the solution is 3.63 m. what quantity in moles of the unknown compound were dissolved in the solution?
The quantity of the unknown compound in moles dissolved in the solution can be calculated by multiplying the molality by the mass of the solvent.
The molality of a solution is defined as the number of moles of solute (the substance being dissolved) per kilogram of solvent (the substance doing the dissolving). It is represented by the symbol "m" and has units of mol/kg.
Given the molality of the solution as 3.63 m, we can calculate the number of moles of the unknown compound in the solution by using the equation:
n = molality x mass of solvent
Suppose the mass of the solvent is "m" kilograms. Then, the number of moles of the unknown compound can be calculated as:
n = 3.63 m x m
So, the quantity of the unknown compound in moles can be determined if the mass of the solvent is known. It is important to note that molality is a concentration unit that is independent of the volume of the solution, and is useful in cases where the density of the solution is not significantly affected by the addition of the solute.
In summary, the molality of a solution represents the number of moles of solute per kilogram of solvent, and the quantity of the unknown compound in moles can be calculated by multiplying the molality by the mass of the solvent.
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What is the functional formula of ketones?
R–C(=O)–R is the functional formula of ketones .
What are compounds ?
A compound is a substance consisting of two or more elements chemically combined in a fixed ratio. They differ from mixtures consisting of two or more substances physically mixed without chemical bonding. Compounds have their own physical and chemical properties that differ from those of individual elements. For example, the compound water (H2O) has different properties (boiling point, density, solubility, etc.) than its components hydrogen (H2) and oxygen (O2).
Compounds are formed by chemical reactions in which atoms of different elements combine to form new substances. The formation of a compound can be represented by a chemical formula that indicates the type and number of atoms in the compound.
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The electron arrangement of any particular atom shows A) the number of isotopes possible. B) a description of the shape of each energy level. C) the number of electrons in each energy level. D) a diagram of an atomic nucleus. E) the maximum number of electrons each energy level can hold.
The electron arrangement of any particular atom shows the number of electrons in each energy level. Therefore, option C is correct.
What is the arrangement of electrons in each energy level?The first energy level is the most distant from the nucleus. The second energy level is slightly more distant than the first. The third is slightly closer than the second, and so on. Each energy level can accommodate or "hold" a different number of electrons before moving on to the next level.
Electrons are organized into sets called shells based on their energies (labeled by the principle quantum number, n). In general, the higher a shell's energy, the farther it is (on average) from the nucleus.
Thus, option C is correct.
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How many milliliters of water are needed to prepare 2. 50 M of calcium nitrate solution if 3. 66g are used?
There would be 8.9 mL of water are needed to prepare 2. 50 M of calcium nitrate solution if 3. 66g are used
To find the volume, first we should calculate the moles of calcium nitrate (Ca(NO₃)₂)
Moles Ca(NO₃)₂ = mass / mass molar
Moles Ca(NO₃)₂ = 3. 66 g / 164.088 g/mol
Moles Ca(NO₃)₂ = 0.0223 moles
we already know that
moles = concentration x volume
volume = moles / concentration
volume = 0.0223 moles / 2. 50 M
volume = 0.0089 L = 8.9 mL
Therefore, if 3. 66g calcium nitrate are used, 8.9 mL of water would be required to prepare exactly 2. 50 M of calcium nitrate solution.
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calculate the ph of a 0.050 m (c2h5)2nh solution (kb = 1.3 x 10-3).
pH of the 0.050 M (C2H5)2NH solution is calculated to be approximately 5.06.
What is meant by pH?The pH of a solution can be calculated from its concentration of hydrogen ions [H+].
Equilibrium constant for given reaction can be expressed as:
Kb = [C2H5NH+][OH-] / [(C2H5)2NH]
Kb is the base dissociation constant, given as 1.3 × 10^-3.
As, [H+][OH-] = Kw
where Kw is the ion product constant for water, equal to 1.0 × 10^-1
[H+]^2 = Kw / Kb = 1.0 × 10^-14 / 1.3 × 10^-3 = 7.69 × 10^-12
[H+] = 8.8 × 10^-6
pH = -log[H+] = -log(8.8 × 10^-6) = 5.06
So, the pH of the 0.050 M (C2H5)2NH solution is approximately 5.06.
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A temperature rise of 11.5°C was observed when 0.500 g of butane gas (CH) was burnt and used to heat 500 mL of water. Calculate the heat of combustion, in kJ/g, for butane, assuming all the heat released is used to heat the water.
Dividing the heat transferred by the mass of butane (0.500 g) gives the heat of combustion of butane, which is 51.7 kJ/g.
Heat of combustion is defined as the amount of energy released when a substance is burned. To calculate the heat of combustion, the amount of heat transferred to the water needs to be determined. Using the formula for heat transfer, Q = mcΔT, where Q is the heat transferred, m is the mass of water, c is the specific heat capacity of water, and ΔT is the change in temperature. Given the mass of water is 500 g, specific heat capacity of water is 4.184 J/g°C and the temperature increase is 11.5°C, the heat transferred can be calculated as:
Q = 500 x 4.184 x 11.5 = 23,040 J/500g
heat of combustion which is 51.7 kJ/g.
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an aqueous potassium iodate stock solution is made by dissolving 7.32 mol kio3 in sufficient water for the final volume of the solution to be 2.40 l. calculate the molarity of the stock kio3 solution. a 10.0 ml aliquot is removed from the described stock solution and diluted to a total volume of 100.0 ml. calculate the molarity of the dilute solution. molarity of dilute kio3 solution
The molarity of dilute [tex]KlO_3[/tex]solution is 0.305 M. It can be calculated by using molarity formula.
The molarity of the aqueous potassium iodate stock solution can be calculated using the formula:
Molarity = moles of solute / liters of solution
Moles of solute = 7.32 mol
Liters of solution = 2.40 L
Molarity = 7.32 mol / 2.40 L = 3.05 M
The molarity of the dilute solution can be calculated as follows:
10.0 mL of the stock solution is taken and diluted to 100.0 mL, so the dilution factor is 100.0 mL / 10.0 mL = 10
The molarity of the dilute solution is equal to the molarity of the stock solution divided by the dilution factor:
Molarity of dilute solution = 3.05 M / 10 = 0.305 M
So the molarity of the dilute potassium iodate solution is 0.305 M.
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density of benzenacetonitrile
Benzenacetonitrile has a density of 1.059 g/cm3. An organic substance with the chemical formula C6H5CH2CN is benzyl cyanide. This colourless serves as a crucial building block for many different chemical molecules.
Experimental analysis can be used to determine the physical characteristic of benzenacetonitrile's density. Mass per unit volume is the definition of density, which is often given in values of g/mL or kg/m3. Using a pycnometer or a hydrometer, one may determine the density of benzenacetonitrile. A liquid is placed in a tiny, carefully calibrated container called a pycnometer, and its volume is calculated by weighing it. A hydrometer is a floating instrument that gauges a liquid's density based on buoyancy. Benzenacetonitrile has a density of 1.059 g/cm3. Because on the sample's purity, temperature, and pressure, benzenacetonitrile density might vary.
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When one atom loses an electron and another atom accepts that electron a(n) __________ bond between the two atoms results.a) hydrogenb) ionicc) radioactived) covalente) explosive
When one atom loses an electron and another atom accepts that electron, an ionic bond between the two atoms results.
An ionic bond is a type of chemical bond formed between a positively charged ion (called a cation) and a negatively charged ion (called an anion). The transfer of electrons from one atom to another creates ions with opposite charges that are attracted to each other, resulting in a strong bond. Ionic bonds are usually formed between metal and non-metal elements, and are characterized by the high electronegativity difference between the atoms involved. Unlike covalent bonds, ionic bonds are directional and have a relatively high ionization energy and lattice energy, making them relatively strong and difficult to break.
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What are the products of a neutralization reaction?
A ) carbon dioxide and water
B ) water and salt
C ) oil and water
D ) salt and carbon dioxide
E ) none of the above
The products of a neutralization reaction is carbon dioxide and water. So, option (a) is correct.
What is reaction ?
A chemical reaction is the transformation of one or more chemicals, known as reactants, into one or more new compounds, known as products. The change in concentration of any of the reactants or products per unit of time can be used to determine the rate or speed of a reaction. It is determined by the equation rate=time + concentration.
What is neutralization ?
A neutralization reaction occurs when an acid and a base interact to produce water and salt. Water is produced by the interaction of H+ and OH- ions. The pH of a strong acid and strong base neutralized has a value of 7.
Therefore, products of a neutralization reaction is carbon dioxide and water. So, option (a) is correct.
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How to draw Lewis Structure for Bromine?
You can draw the structure of bromine by first drawing two dots around each bromine atom to represent the valence electrons. Then Connect the two bromine atoms with a single bond to represent the sharing of two electrons between the two atoms.
What do you mean by a lewis structure?A Lewis structure, also known as an electron dot structure, is a way to represent the distribution of electrons in a molecule. It is used to predict the shape of a molecule, as well as the reactivity of its individual atoms
How are lewis structures drawn?Lewis structures are drawn using symbols for the atoms involved in the molecule and dots to represent electrons. The number of dots around an atom represents its valence electrons, and bonds between atoms are represented by lines connecting the dots.
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Lewis structures are diagrams that show the bonding between atoms in a molecule and the lone pairs of electrons that may exist in the molecule.
What is molecule ?Molecule is a small particle composed of two or more atoms held together by chemical bonds. Molecules are the building blocks of matter that make up all living things, such as plants, animals, and humans. Molecules have a wide range of properties, depending on the types of atoms that make them up and the way those atoms are bonded together. Common examples of molecules include water, air, and sugar. They can be found in all three states of matter – solid, liquid, and gas. Molecules are essential for the body’s biochemistry and can also be used in other scientific processes such as drug delivery.
To draw a Lewis structure for bromine, we first need to determine the total number of valence electrons in the molecule. Bromine has 7 valence electrons, so the total number of valence electrons in the molecule is 14 (7 from each bromine atom). Next, we arrange the atoms in a two-dimensional diagram, with the bromine atoms at either end of the diagram. We then draw a single bond between the two bromine atoms to represent the covalent bond.
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how many atoms of deuterium in 2kg of water
The number of the atom of the deuterium in the 2kg of the water is 1.54 × 10²² atoms.
The amount of the water = 2 kg
The moles of the water = mass / molar mass
The moles of the water = ( 2 × 1000 g) / 18 g/mol
The moles of the water = 111.11 mol
1 mole of substance = 6.022 × 10²³ molecules
Number of molecules of water = 111.11 × 6.022 × 10²³ molecules
Number of the molecules of water = 6.70 × 10²⁵ molecules
The hydrogen atoms present = 2 × 6.70 × 10²⁵
= 1.34 × 10²⁶ atoms
The natural abundance of the deuterium = 0.0115 %.
The number atoms of deuterium = 0.0115 % × 1.34 × 10²⁶ atoms
The number atoms of deuterium = 1.54 × 10²² atoms
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What are the standard temperature (in Kelvin) and pressure (in atm.) conditions for gas measurements?
The standard temperature (in Kelvin) and the pressure (in atm.) conditions for gas measurements. The Temperature is 25 degrees Celsius (273.15 degrees Kelvin) and the Pressure is 1 atm (101.325 kPa) .
The standard temperature in Kelvin and the pressure in atm are :
1) Temperature: 25 degrees Celsius or 273.15 degrees Kelvin
2) Pressure: 1 atm or 101.325 kPa
The Standard temperature and the pressure are the standard sets of the conditions for the experimental measurements that is established to allow the comparisons to be made between the different sets of data. The Standard temperature and the pressure is used in the thermodynamic calculations.
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Suppose you are told that 15 quarts (qt)=14.2 liters (L).
a. What is the conversion factor you would use to convert from quarts to liters?
b. What is the conversion factor you would use to convert liters to quarts?
a. The conversion factor to convert quarts to liters is 0.946352946 liters per quart (L/qt). This can be calculated by dividing 14.2 L by 15 qt:
14.2 L / 15 qt = 0.946352946 L/qt
b. The conversion factor to convert liters to quarts is 1.057 quarts per liter (qt/L). This can be calculated by dividing 15 qt by 14.2 L:
15 qt / 14.2 L = 1.057 qt/L
How to define quarts?
Quarts is a unit of measurement for volume, equal to one fourth of a gallon or two pints. It is also a unit of dry measurement, equal to one eighth of a peck, two pints, or four cups.
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i need help with this chemistry worksheet
1) Allowed
2) Not allowed
3) Not allowed
4) Not allowed
5) Not allowed
6) Not allowed
7) Allowed
8) Allowed
9) Allowed
10) Not allowed
How do we fill atomic orbitals?Atomic orbitals are filled with electrons according to the Aufbau principle and Hund's rule, following the electron configuration of the elements in the periodic table.
The Aufbau principle states that electrons fill orbitals in increasing energy levels starting from the lowest energy level. Hund's rule states that electrons occupy orbitals of equal energy singly before pairing up with another electron of opposite spin. The electron configuration is determined by the number of protons in the nucleus, which is the atomic number of the element. The electron configuration determines the electron arrangement in the atom and its chemical properties.
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The dissolution process is represented by the following equation: CaCl₂ (s) Ca²+ (aq) + 2C1¯ (aq) The value for AHis 81.8 kJ for the reaction as written. (No sign has been included, as you are asked for that in Part 1.) When 0.0261 mol CaCl₂ is used in a hot pack, kJ of heat is produced by the hot pack.
The heat produced by the reaction is -2.14 kJ. The negative sign indicates that heat is released from the reaction, which is consistent with the exothermic nature of the reaction.
The dissolution process of CaCl₂ can be described as an exothermic reaction, as heat is released during the reaction. The heat released by the reaction can be calculated from the change in enthalpy (ΔH) using the equation:
q = ΔH * n
where q is the heat produced by the reaction, ΔH is the change in enthalpy, and n is the number of moles of CaCl₂ that reacts.
Given:
ΔH = -81.8 kJ/mol (negative sign indicates that the reaction is exothermic)
n = 0.0261 mol of CaCl₂
Therefore,
q = ΔH * n = -81.8 kJ/mol * 0.0261 mol = -2.14 kJ
The heat produced by the reaction is -2.14 kJ. The negative sign indicates that heat is released from the reaction, which is consistent with the exothermic nature of the reaction.
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A Gas Undergoes A Cycle In A Piston–Cylinder Assembly Consisting Of The Following Three Processes:
A piston–cylinder assembly is a device used to measure the pressure, volume, and temperature of a gas. It usually consists of a cylinder with a movable piston, which is used to compress or expand the gas within the cylinder. The three processes in a piston–cylinder assembly are usually compression, expansion, and isothermal processes.
In compression, the gas is compressed by the piston, decreasing the volume of the cylinder and increasing the pressure of the gas. Expansion is the opposite process, where the piston moves outward and increases the volume of the cylinder while decreasing the pressure of the gas. An isothermal process is a type of process where the temperature remains constant while the pressure and volume of the gas change.
These three processes can be combined to create a thermodynamic cycle. In this type of cycle, the gas undergoes a series of isothermal, expansion, and compression processes, which return the gas to its original state. This type of cycle is used to measure the thermodynamic properties of a gas, such as its heat capacity and efficiency.
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How many carbon atoms are there in 2. 8 x 102 lbs of sugar, c12h22o11? 1 lb = 453. 6 g.
The number of carbon atoms in 2. 8 × 102 lbs of sugar are 9.96 × [tex]10^{1}[/tex]atoms.
To find the number of carbon atoms in 2.8 × 102 lbs of sugar, we first need to convert the sugar's weight to grams, then find the number of moles, and finally find the number of carbon atoms. The conversion from pounds to grams is given by:
453.6 g/lb × 2.8 x 102 lbs = 1.27 × 104 g
Next, we find the number of moles using the molar mass of sugar:
1.27 × 104 g / (12.01 g/mol + 22.99 g/mol + 11 × 16.00 g/mol) = 0.83 mol
Finally, we find the number of carbon atoms:
0.83 mol × 12 atoms/mol = 9.96 x [tex]10^{1}[/tex] atoms.
So, there are approximately 10 × 102 carbon atoms in 2.8 × 102 lbs of sugar.
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How many electrons can sulfur have in a Lewis structure?
The periodic table shows that sulphur (S), which is in Period 3, can have an extended octet and more than 8 valence electrons and 2,8,6 in a Lewis structure.
How would you define the Lewis structure using an example?The octet rule, which dictates that atoms share electrons so that each has eight in its outer shell, is the cornerstone of a Lewis structure. For particular, the outer shell of an oxygen atom has six electrons.
Why is it possible for sulphur to possess more than 8 electrons?Sulfur needs utilize multiple orbitals in addition to the ns and np valence orbitals in order to contain more than eight electrons. In principle, sulphur could contain more than eight valence electrons by occupying one or more d orbitals related to its [Ne]3s23p43d0 electron configuration.
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If you have a graduated cylinder containing 5.52mL and this volume changes to 8.53ml after a metal with a mass of 23.14 g is dropped into the graduated cylinder, then what is the density of this metal?
Answer:
The answer is 7,730 kg/m^3.
Explanation:
The volume of the metal can be calculated by subtracting the initial volume of the water (5.52 mL) from the final volume of the water and metal (8.53 mL).
V = 8.53 mL - 5.52 mL = 3.01 mL
Density can be calculated by dividing the mass of the metal (23.14 g) by its volume (3.01 mL).
D = mass/volume
D = 23.14 g / (3.01 mL * 10^-6 L/mL) = 7,730 kg/m^3
So the density of the metal is 7,730 kg/m^3.
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the definition of the liquidity premium theory of the term structure states that
The liquidity premium theory of the term structure states that the interest rate on a longer-term bond is higher than the interest rate on a shorter-term bond to compensate the investor for the added uncertainty and risk associated with tying up their money for a longer period of time.
According to this theory, investors demand a higher rate of return on longer-term bonds to compensate them for the possibility that they may need to sell their bonds before maturity. In this case, they would face the possibility of selling their bonds at a lower price than their face value if interest rates have risen in the meantime.
The liquidity premium theory also takes into account that longer-term bonds are more sensitive to changes in interest rates than shorter-term bonds. This sensitivity is known as "duration." As a result, longer-term bonds are considered to be riskier investments than shorter-term bonds, and investors demand a higher rate of return to compensate for this added risk.
In conclusion, the liquidity premium theory of the term structure states that the interest rate on a longer-term bond is higher than the interest rate on a shorter-term bond due to the added uncertainty and risk associated with tying up an investor's money for a longer period of time.
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any carbon substituent formed by removing one hydrogen from an alkane (for example, ch3ch2ch2-) is called a(n)
Any carbon substituent formed by removing one hydrogen from an alkane is called an alkyl group.
An alkane is a type of hydrocarbon that contains only single bonds and has the general formula [tex]CnH_{2}n+2[/tex]. When one hydrogen atom is removed from an alkane, the resulting carbon group is called an alkyl group. The name of the alkyl group depends on the number of carbon atoms in the group and the location of the removed hydrogen.
For example, [tex]CH_{3}CH_{2}CH_{2}[/tex]- is a propyl group, while [tex]CH_{3}[/tex]- is a methyl group. Alkyl groups are commonly used as substituents in organic chemistry and can greatly influence the chemical and physical properties of a molecule.
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A 25. 0mL solution acetic acid (CH3CO2H) is titrated with 0. 20M NaOH and reaches the endpoint after the addition of 16. 3mL of NaOH. What is the concentration of acetic acid in solution
The solution contains 0.129M of acetic acid.
The following equation can be used to determine the amount of acetic acid present in the solution:
A chemical solution's concentration is measured in molarity (M). It refers to the solute's moles per liter of solution. To be clear, this is not the same as the liters of solvent (a common mistake). Although molarity is a useful unit, it does have one significant drawback. Temperature impacts a solution's volume, therefore when the temperature varies, it does not stay constant.
[tex]M_{1} V_{1} =M_{2} V_{2}[/tex]
Where M1 is the acetic acid molarity, V1 is the acetic acid volume, M2 is the NaOH molarity, and V2 is the volume of added NaOH.
After solving for M1 and substituting the supplied values into the equation, we obtain:
M1 = 0.20M (16.3 mL)/25 mL
M1 = 0.129M
hence the solution contains 0.129M of acetic acid.
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a solution where additional solute can be dissolved without outside stress?
A solution can be said to be unsaturated if additional solute can be dissolved without any external stress or pressure.
For example, when sugar is dissolved in water, the sugar is a solute and the water is the solvent. If more sugar is added, it will dissolve into the solution until it reaches its maximum solubility. This is an unsaturated solution since more sugar can still be dissolved without external stress.
Solutions are homogeneous mixtures of two or more substances in relative amounts that can be varied continuously up to a certain limit. Solutions are made up of a solute, which is the substance being dissolved, and a solvent, which is the substance that the solute is dissolved in. Solutions can be liquid, gaseous, or solid, depending on the type of solute and solvent present.
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5b. The object George is examining has a mass of 15 grams. What is
the density of the object?
The density of the object is 0.75 g/mL.
What is the density of the object?We must note that the ratio of the mas to the volume is the density of the object. We have to note that one of the ways to know the mass of the object is the displacement method. This is the method in which the volume of the fluid displaced is the volume of the object that we are trying to measure.
Thus;
Mass of the object = 15 grams
Volume of the object = 45 mL - 25 mL = 20 mL
Density of the object = 15 g/20 mL
= 0.75 g/mL
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Missing parts;
George put 25 mL of water into a graduated cylinder.After addinga solid object, the water level in the cylinder rose to 45 mL.What is thevolume of the object?