you need 3.6 x 10 to the power 24 molecules of oxalic acid (h2c2o4). Grams of the acid should you weigh out in the laboratory,
3.6 * 10 to the power 24 molecules----->1 mol / 6.022 * 10 to the power 23 molecules -----> 90.04 g H2C2O4 / 1 mol = 540g =5.4 * 10 to the power 2 g
We are informed that we possess 3.6 x 10–24 molecules of oxalic acid, and we are afterwards asked how many grammes of the acid we should weigh out. Okay, then we'll multiply that by the inverse of Gag Avogadro's number, which we'll write a little bit larger, to find the number of molecules in a mole, and then we'll multiply that by the molar mass of oxalic acid, which we calculated before. That would be 540 grams according to the calculation I just did: 3.6 times 10 to the 24 times 90.03 divided by 6.022 times 10 to the twenty-third.
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Why is Borons atomic number 5?
Answer:
boron atom has 5 protons and 5 electrons. Its average atomic mass is 10.81.
Boron's atomic number is 5 because it has 5 protons in its nucleus. The number of protons in an atom's nucleus is what determines the element's atomic number.
What is nucleus?
Nucleus is the central core of an atom, consisting of protons and neutrons. It is the heaviest and most important part of the atom, as it contains most of the atom's mass and positive charge. The number of protons in the nucleus determines the element, while the number of neutrons determines the isotope. The nucleus is held together by a strong nuclear force and can be found in the center of the atom. It is surrounded by a cloud of electrons that orbit it at a distance. The nucleus is the key to understanding how chemical reactions occur, as its composition is what determines the type of atom.
Therefore, Boron's atomic number is 5 because it has 5 protons in its nucleus.
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The ka of hclo is 3. 0 x 10-8. What is the percent dissociation of hclo in a 0. 015 m aqueous solution of hclo?.
The percent dissociation of HClO in a 0. 015 m aqueous solution of HClO is 0.14 %
When introduced in water, strong acids and bases totally dissociate. In other words, the full base [BOH] or acid [HA] splits into ions.
On the other hand, weak acids and bases do not entirely dissociate in an aqueous solution. is a marker for % decoupling (alpha). A chemical is simply dissociated into its corresponding ions in a suitable solvent. Depending on the solvent, a molecule will dissociate to a different extent.
Dissociation of an aqueous solution of hypochlorous acid in a balanced chemical reaction
HClO(aq) ⇄ H⁺(aq) + ClO⁻(aq).
Ka = [H⁺] · [ClO⁻] / [HClO].
The concentration of hydrogen cations or protons at equilibrium is [H+].
The concentration of hypochlorite anions at equilibrium is [ClO].
The equilibrium concentration of hypochlorous acid is [HClO].
The acid dissociation constant is called Ka.
Ka(HClO) = 3.0·10⁻⁸.
c(HClO) = 0.015 M.
Ka(HClO) = α² · c(HClO).
α = √(3.0·10⁻⁸ ÷ 0.015).
α = 0.0014 · 100% = 0.14%.
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1. you have a 500 um (micromolar) solution of dcpip (in water) and would like to make 10 ml of a 100 um solution. how many ml of water will you need to add to make 10 ml of the 100 um solution?
To make 10 ml of a 100 um solution from a 500 um solution of DCPIP, you need to add 8 ml of water.
This is because the ratio of the original solution to the desired solution is 500:100. Therefore, the amount of water required is 10 ml - (10 ml x 100/500) = 8 ml.
To further understand the process of making a dilution from a stock solution, it is helpful to understand the concept of molarity. Molarity is a measure of concentration, where the number of moles of a given substance per liter of solution is calculated. To make a dilution from a stock solution, the molarity of the stock solution must be known, and the desired molarity must also be known.
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11. A chemist burns 346 liters of a fuel (C3H8) at a constant temperature and pressure. What
volume of carbon dioxide are made?
C3H8 (g) +5O2 (g) -> 3CO₂ (g) + 4H₂O (g)
The volume of carbon dioxide that is made when a chemist burns 346 liters of fuel (C₃H₈) at a constant temperature and pressure is 1038 Liters.
What is the mole ratio of the reaction of the combustion of the fuel?The mole ratio of the reaction of the combustion of the fuel is obtained from the equation of the reaction as follows:
C₃H₈ (g) + 5 O₂ (g) ----> 3 CO₂ (g) + 4H₂O (g)
The mole ratio of the fuel and the carbon dioxide produced is 1 : 3
Molar volume of a gas = 22.4 L
Moles of the fuel, C₃H₈, used = 346/22.4 moles
The volume of carbon dioxide produced = 346/22.4 moles * 3 * 22.4
The volume of carbon dioxide produced = 1038 Liters.
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A student sees tiny bubbles clinging to the inside of an unopened plastic bottle full of carbonated soft drink. The student opens the bottle, and hears a loud hiss as gas under pressure escapes from the bottle.
The tiny bubbles seen inside the unopened plastic bottle of carbonated soft drink were carbon dioxide (CO2) gas.
The carbon dioxide was dissolved in the soft drink under high pressure. When the bottle was opened, the pressure inside the bottle dropped, causing the carbon dioxide to escape from the solution in the form of bubbles. Which was dissolved in the liquid under pressure. When the student opened the bottle, the pressure inside the bottle was released, causing the CO2 gas to escape from the liquid and form bubbles on the inside of the bottle. The loud hiss heard by the student was the sound of the CO2 gas escaping from the bottle. This process is known as degassing, and it occurs because the solubility of CO2 in the liquid decreases as the pressure decreases.
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Recent recommendations suggest that we consume monounsaturated fats in the place of saturated fat. Which of the following items would achieve this goal?
CANOLA OIL AND OLIVE OIL
Yes, canola oil and olive oil are good choices for replacing saturated fats in your diet, as they are rich in monounsaturated fats.
Both canola oil and olive oil contain high amounts of monounsaturated fats, which have been shown to have health benefits, such as reducing the risk of heart disease and improving cholesterol levels. Monounsaturated fats are also more stable than polyunsaturated fats, which makes them a better choice for cooking and baking.
In contrast, saturated fats have been linked to an increased risk of heart disease, as they raise LDL (bad) cholesterol levels. For this reason, it is recommended to limit the amount of saturated fats in your diet and replace them with healthier fats, such as monounsaturated and polyunsaturated fats.
In conclusion, using canola oil and olive oil in place of saturated fats can help you achieve a healthier balance of fats in your diet.
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if you know that you have 4.52 x 10-2 moles of metal ions in a 125 ml sample, what is the molarity of the sample? place your answer in 3 significant figures, not in scientific notation, and no unit. be sure to include the zero before the decimal.
Metal chloride has a 16.485% chloride concentration. To create the precipitate, agency, for a soluble metal, 73.5 ml of 0.256 m agno3 must be added to the metal chloride (s).
In order for your body to function properly and to keep you hydrated and healthy, electrolytes are required. One of the most important is chloride, which is an electrolyte. Along with salt and potassium, they maintain a balance in your body's acid and base levels. It is responsible for managing the fluid movement into and out of your cells. Metal chlorides, bromides, and to a lesser extent iodides continue to be the three most important class introductory materials in inorganic chemistry. Chlorine has a molecular weight of 1.88 * 10-2 * 35.5. = 0.667g. Therefore, the chloride content of metal chloride is represented as 0.667/4.046 * 100. = 16.485%
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How much phosphorous is in plant food?
The exact amount of phosphorous in plant food depends on the specific product, as well as the intended use and type of plant it is formulated for.
Plant food typically contains varying amounts of phosphorous, one of the three primary macronutrients essential for plant growth and health along with nitrogen and potassium.
For example, standard all-purpose plant food will often have a balanced ratio of the three macronutrients, including around 10% phosphorous. However, specific plant food products may have higher or lower amounts of phosphorous, with some formulated for high-phosphorus crops like tomatoes or flowering plants.
It's important to note that too much phosphorous can lead to imbalanced soil nutrient levels, potentially inhibiting the uptake of other essential micronutrients like iron and zinc. Therefore, it's important to follow label instructions and not over-fertilize with high-phosphorus plant food.
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what can you conclude about the solvents used and their reaction with the markers?
The type of solvent used with a marker can greatly affect the reaction and outcome of the marker. When selecting a solvent, it is important to consider the polar or non-polar nature of both the solvent and the marker in order to achieve the desired result.
Solvents are liquids that are used to dissolve substances and are an important aspect of chemical reactions and processes. When it comes to markers, the type of solvent used can greatly affect the reaction and outcome of the marker.
In general, solvents can be classified as polar or non-polar. Polar solvents, such as water, have a positive and negative end, while non-polar solvents, such as oil, have a more uniform distribution of electrons. The solubility of a substance is determined by its polar or non-polar nature and the polar or non-polar nature of the solvent.
Markers contain various types of dyes or pigments that can be either polar or non-polar. When a polar solvent, such as water, is used with a polar marker, the marker will dissolve easily, leading to a more intense and uniform color. On the other hand, when a non-polar solvent, such as alcohol, is used with a polar marker, the marker may not dissolve as well and the color may be lighter or less intense.
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Why is dissolving salt in water an endothermic process?
The reason dissolving salt in water an endothermic process is because it requires the absorption of heat from the environment. This happens because the bonds between the salt ions and the water molecules are disrupted, and energy is needed to overcome these bonds and allow the salt ions to dissolve in the water.
Any thermodynamic process with an increase in the enthalpy H (or internal energy U) of the system is referred to as an endothermic reaction in thermochemistry (from the Greek v (endon) "inside" and -(therm) "hot, warm"). A closed system often transfers heat into itself during such a process by absorbing thermal energy from its surroundings.
As a result, an endothermic reaction typically results in a rise in the system's temperature and a fall in the environment's. It could involve a chemical reaction, such when ammonium nitrate (NH4NO3) is dissolved in water (H2O), or a physical action, like when ice cubes melt.
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Copper can have improved wear resistance if alloyed with ceramic alumina, Al2O3. If a copper alloy has 9. 9 wt % Al2O3, what is its composition in mol %
Zn, Sn, Si, Al, and Ni serve as the primary alloying elements in copper alloys, which are alloys based on copper. Brasses (Cu-Zn) and bronzes (Cu-Sn), two copper-based alloys, are widely used in a variety of industrial and societal purposes.
What is the role of copper alloy in ceramic alumina?Unless they have already claimed it, this person is not registered with ResearchGate. The normal copper content of aluminum-copper alloys ranges from 9 to 12%, with lesser additions of other components.
The copper significantly boosts strength and speeds up precipitation hardening. Aluminium's ductility and corrosion resistance may be affected by copper.
Therefore, It provides a weight percentage of the elements found in the produced oxides. Convert this weight percentage to a mole percentage to confirm the ratio in which the initial precursors were used to create the sample.
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which type the 3D clay sphere or the 2D cross-section diagram provides more advantages as a model
The 3D clay sphere provides more advantages as a model than 2D cross-section diagram. A diagram is a simple picture or representation.
What is diagram?In many facets of our everyday life, including work, education, personal projects, and much more, diagrams are typically employed. For any business, professional activity, or personal project, creating a clear and well-defined diagram is crucial to displaying a certain concept, idea, relationship, anatomy, statistical data, and any issue in an orderly manner.
A diagram is a simple picture or representation made out of lines and forms that serves to illustrate a certain concept, idea, information, or subject. The 3D clay sphere provides more advantages as a model than 2D cross-section diagram.
Therefore, the 3D clay sphere provides more advantages as a model.
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3) what is the molarity of a solution that was prepared by dissolving 14.2 g of nano3 (molar mass = 85.0 g/mol) in enough water to make 350 ml of solution?
The molarity of the solution that is prepared by dissolving 14.2 g of NaNO₃ in enough water to make 350 ml of solution is 0.477 M.
The mass of the NaNO₃ = 14.2 g
The molar mass of the NaNO₃ = 85 g/mol
The moles of the NaNO₃ = mass / molar mass
The moles of the NaNO₃ = 14.2 / 85
The moles of the NaNO₃ = 0.167 mol
The molarity expression is as:
The molarity = moles / volume
The molarity = 0.167 / 0.350
The molarity = 0.477 M
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I need help, please.
Mass of Barium = 720.73 g ; Mass of Phosphorus = 108.37 g ; Mass of Oxygen = 223.91 g
How to calculate masses?To determine the masses of barium, phosphorus, and oxygen in a sample of barium phosphate (Ba3(PO4)2), you need to calculate the formula weight of the compound and then multiply it by number of moles of compound in the sample.
First, calculate the formula weight of the compound:
Ba3(PO4)2 formula weight = (3 x 137.327 g/mol) + (2 x (30.97 g/mol + 4 x (16.00 g/mol)) = 601.9 g/mol
n = 1053.8 g / 601.9 g/mol = 1.75 mol
Mass of Barium = 3 x 137.327 g/mol x 1.75 mol = 720.73 g
Mass of Phosphorus = 2 x 30.97 g/mol x 1.75 mol = 108.37 g
Mass of Oxygen = 8 x 16.00 g/mol x 1.75 mol = 223.91 g
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Town A experiences several days of cold temperatures and steady rain. Town B, which is twenty kilometers east of Town A, experiences rain and warm yemperatures during. The same time. What weather pattern explains these events?
The weather pattern that explains these events in Towns A and B is likely a temperature inversion.
This occurs when a layer of warm air is trapped above a layer of cold air, causing the warm air to stay close to the ground and the cold air to remain in the upper atmosphere. In this scenario, Town A would be experiencing the cold, rainy weather because it is located under the layer of cold air, while Town B would experience the warm, rainy weather because it is located above the layer of warm air. This type of weather pattern can last for several days and is caused by differences in air pressure and temperature.
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Consider the reaction: SO2 + O3 → SO3 + O2. A rate study of this reaction was conducted at 298 K. The data that were obtained are shown in the table: [SO2), mol/L [O3), mol/L Initial Rate, mol/(L.) 0.25 0.40 0.118 0.25 0.20 0.118 0.75 0.20 1.062 a. What is the order with respect to: SO2? O3? (11 points) b. Write the rate law for this reaction. (11 points) c. Determine the value and units of the rate constant, k. (11 points)
From the data in the table, it can be seen that the rate of reaction is independent of the concentration of O3, meaning that the reaction order with respect to O3 is 0. The value of k is 0.472 mol/(L.s)-1
On the other hand, the rate of reaction is directly proportional to the concentration of SO2, meaning that the reaction order with respect to SO2 is 1.
b. Based on this information, the rate law for the reaction is:
rate = k[SO2].
c. To determine the value of the rate constant, we can use the rate data for one set of conditions. For example, when [SO2] = 0.25 mol/L and [O3] = 0.40 mol/L, the initial rate is 0.118 mol/(L.s). Plugging these values into the rate law, we get:
0.118 = k × 0.25.
Solving for k, we find that the value of k is 0.472 mol/(L.s)-1. The units of k are (L.s)-1.
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(30 POINTS)
Modeling the Greenhouse Effect
In this activity, you will model the greenhouse effect by graphing air temperature over time.
You will need these materials:
2 empty two-liter plastic bottles (or 2 clear plastic containers, similar in size), rinsed
2 thermometers (not mercury) that will each fit inside a bottle
a lamp with a 150-watt incandescent bulb (if direct sunlight is not available)
a measuring cup
soil (4 cups)
a roll of plastic wrap
a scissors or utility knife
clear tape
1 rubber band
6-8 ice cubes (all the same size)
Follow these steps to set up the experiment, and then answer the question in part A.
Cut off the neck of each bottle using the scissors as shown in the image. Stay safe: cut slowly and carefully so you do not cut yourself. If you’re using containers other than bottles, no cutting is needed.
Add two cups of soil to each bottle.
Place 3–4 ice cubes on top of the soil. The number of cubes must be the same in each bottle.
Tape a thermometer into the inside wall of each bottle. Stay safe: do not use mercury thermometers in the event they might break. Be sure to face the thermometer outward from the bottle for easy reading.
Cover the top of one bottle tightly with plastic wrap secured by a rubber band. Leave the other bottle open.
Position the bottles so that they are an equal distance from the lamp. (If you're not using a lamp, place the bottles in direct sunlight.) Turn the lamp on. Stay safe: To avoid electrocution, keep all water away from electrical sources.
Face the thermometers in the same direction for easy reading, as shown in the image.
a plastic bottle cut in half
two plastic bottles containing thermometers kept under a lamp
Hypothesis and Data Collection
Part A
Study your experiment setup. In 30 minutes, how will the air temperature in the bottles compare? What do you predict will happen to the ice in each bottle?
The answers include the following:
There will be an increase in the air temperature in the bottle.The ice which is present in each bottle will melt when observed after minutes.What is Temperature?This is referred to as the degree of hotness or coldness of a substance and it is influenced by thermal energy with the unit being in Kelvin which is denoted as K.
Greenhouse effect leads to an increase in the temperature of the environment due to the depletion of the ozone layer thereby causing global warming which is experienced in today's world and is the reason why the ice will melt.
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Using the periodic table explain how the position of the elements that make up sugar (the formula for sugar is C12H220g and Ethanol is C2H5OH) can be used to tell if the bonds are ionic or covalent
The electronegativity values of elements can be found on the periodic table and can be used to determine whether the bond is ionic or covalent.
The type of bond present in a molecule can be determined based on the electronegativity difference between the atoms that make up the bond. If the electronegativity difference between the atoms is large, then the bond is considered ionic. On the other hand, if the electronegativity difference is small, the bond is considered covalent. The electronegativity values of elements can be found on the periodic table.
For example, the elements present in sugar (C12H22O11) are carbon, hydrogen, and oxygen, with carbon having an electronegativity of 2.5, hydrogen of 2.2, and oxygen of 3.5. As the electronegativity difference between these elements is small, the bonds present in sugar are covalent. Similarly, in ethanol (C2H5OH), the electronegativity difference between carbon, hydrogen, and oxygen is also small, indicating covalent bonds.
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LINEA DEL TIEMPO DE LA HISTORIA DE LA ESTEQUIOMETRIA EN LA QUIMICA
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water was boiled in a beaker. the mass of the water remaining in the beaker was measured and graphed. how many moles of water vaporized during the first five minutes?
The number of moles of water that vaporized during the first five minutes would be 2.78 moles (50 g / 18 g/mol = 2.78 moles).
What is moles?Moles are a kind of small mammal found in many parts of the world. They are burrowing animals, living underground in burrows and tunnels. They have adapted to life underground and have physical features that help them survive in this environment, such as small eyes and ears, short legs and strong claws. They feed mainly on grubs, worms, and other small invertebrates found underground. They also eat some plant material and occasionally small animals. Moles are solitary animals and live in small family groups. They play an important role in the ecosystem, aerating and fertilizing the soil.
In order to calculate the number of moles of water that vaporized during the first five minutes, we must first calculate the mass of water vaporized during the same time period. This can be done by subtracting the mass of water remaining in the beaker after five minutes from the initial mass of water in the beaker. Once the mass of water vaporized is determined, it can then be converted to moles using the equation mass (g) = moles x molar mass (g/mol).
Assuming the initial mass of water in the beaker was 100 g, and the mass of water remaining in the beaker after five minutes was 50 g, the mass of water vaporized during this time period would be 50 g. To convert this to moles, we would use the equation mass (g) = moles x molar mass (g/mol). Since the molar mass of water is 18 g/mol, the number of moles of water that vaporized during the first five minutes would be 2.78 moles (50 g / 18 g/mol = 2.78 moles).
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What themes are represented in part 2 of Fahrenheit 451?
1. Censorship: The government continues to censor books, literature, and other sources of knowledge and information in this part of the novel.
2. Rebellion: Throughout the novel, characters like Montag and Clarisse challenge the status quo and fight against the oppressive government.
3. Technology: Technology is used to control and manipulate the population, but is also a tool for progress and freedom.
4. Knowledge: The importance of knowledge and information is highlighted throughout the novel, as characters seek to learn more in order to resist the oppressive government.
What ia freedom?
Freedom is the ability to live life as one chooses, free from any constraints or interference from another person or entity. It is the right to think, speak, and act without interference or fear of retribution, and the right to make one's own choices.
Therefore,
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I have 7.83x10^-2 helium how many grams he do have?
Answer:
It depends on the missing unit.
Explanation:
What is meant by "7.83x10^-2 helium?" Helium atoms, kg, cm^3, ? Without the unit, the statement is meaningless. If the unit is kg, then:
(7.83x10^-2 kg helium)*(1,000g/1kg) = 78.3 grams He
Which of the following measurements are included in STP? (Check all that apply)
2.0 atmospheres
72˚ Fahrenheit
1 atmosphere
273 Kelvin
1.5 atmospheres
Answer:
Explanation:
1 atmosphere (standard pressure), 273.15 kelvin (standard temperature)
One mole of ____ contains the smallest number of atoms.
a) S8
b) C10H8
c) Al2(SO4)3
d) Na3PO4
e) NaCl
The smallest mole is one mole of sodium chloride. E is the right response.
What are the uses of NaCl?As an electrolyte replenished, sodium chloride is used to assist reduce heat cramps brought on by excessive perspiration.This drug is also used to make a standard isotonic sodium chloride solution.
Determine how many atoms there are in every mole of the specified elements as a first step.
For S₈
8 atoms of sulphur
∴Total atoms = 8 atoms
For NaCI
1 atom of Chlorine
1 atom of Sodium
∴ Total atoms = 2 atoms
For AI₂(S0₄)₃
2 atoms of Al
3 atoms of sulphur
12 atoms of oxygen
∴ Total = 17 atoms in one mole of AI₂(S0₄)₃
For C₁₀H₈
10 atoms of Carbon
8 atoms of hydrogen
Total atoms = 18 atoms
For Na₃PO₄
3 atoms of sodium
1 atom of P
4 atoms of Oxygen
Total atoms = 8 atoms
As a result, we may say that of the elements listed, 1 mole of NaCl has the fewest atoms.
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How do you know which compound has the highest oxidation number?
The highest oxidation number in a compound can be determined by looking at the element with the greatest positive charge.
Oxidation number is a measure of the oxidation state of an element in a compound. It represents the charge that an element would have if the compound were completely ionic. The highest oxidation number in a compound indicates the element with the greatest positive charge.
To determine the highest oxidation number, one needs to consider the element's electron configuration and the electron-donating or electron-withdrawing properties of the surrounding atoms. Elements in compounds can have positive, negative, or zero oxidation numbers depending on the chemical species they form.
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which of the following is expected to have the greatest viscosity? question 2 options: a) c5h12 b) c5h11oh c) ch4 d) c6h14
The expected to have the greatest viscosity is option c.C5H11OH.
The resistance of a fluid (liquid or gas) to a change in shape or motion of adjacent sections relative to one another is known as viscosity. Viscosity is a sign of flow resistance.
The thickness of a fluid is another name for viscosity. The state of a fluid, including its temperature, pressure, and rate of deformation, affects its viscosity. In some circumstances, the dependence on some of these traits is minimal. For instance, the rate of deformation has no effect on the viscosity of a Newtonian fluid. Super fluids are the only fluids that exhibit zero viscosity, or no resistance to shear stress; in all other fluids, positive viscosity is required by the second law of thermodynamics. Ideal or inviscid fluids are those with no viscosity.
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Explain what happens in:a. RBC with 10% NaCl.b. RBC with 0.9% NaCl.c. RBC with 0.1% NaCl.
a. In RBC with 10% NaCl, the concentration of sodium chloride is much higher than the normal concentration in blood, causing the red blood cells to shrink and become crenated due to osmotic pressure.
b. In RBC with 0.9% NaCl, the concentration of sodium chloride is close to the normal concentration in blood, resulting in little to no change in the shape or size of the red blood cells.
c. In RBC with 0.1% NaCl, the concentration of sodium chloride is much lower than the normal concentration in blood, causing the red blood cells to swell and become distorted due to osmotic pressure.
What is the effect of 10% NaCl on RBC?The effect of 10% NaCl on RBC is that it causes the water to move out of the RBC and into the solution, resulting in the RBC shrinking and becoming crenated due to the high concentration of salt compared to the concentration inside the RBC.
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consider the reaction when aqueous solutions of barium hydroxide and cobalt(ii) bromide are combined. the net ionic equation for this reaction is:
CoBr2 (aq) + Ba(OH)2 (aq) = Co(OH)2 + BaBr2 (aq) (aq) The reaction between aqueous solutions of barium hydroxide and cobalt(II) bromide has the following net ionic equation:
A mathematical statement that establishes the equivalence of two expressions is known as an equation. To indicate the relationship between several parts, it makes use of mathematical symbols like the equal sign (=), integers, and variables. In areas like physics, engineering, and economics, equations may be utilised to solve issues and simulate actual circumstances. For instance, the linear equation y = mx + b, where m is the line's slope and b is its y-intercept, is a slope-intercept equation. Finding the answer to a problem can be aided by solving for x and y in an equation.
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Which element from the lit had the lowet electron affinity?
Radium
Ca
Germanium
CI
According to the question, Ca from the lit had the lowet electron affinity.
What is Ca?
Calcium is an essential mineral that is found in many foods. It is important for bone health, and plays a role in muscle contraction, nerve conduction, and blood clotting. Calcium is also needed for other body functions, such as hormone secretion, enzyme activation and cell signaling. The body does not make calcium, so it must be obtained through food or supplements. Milk and dairy products are a great source of calcium, as are some leafy greens, fish, and legumes. Calcium supplements are also available, but should be taken with caution, as too much can cause health issues. It is important to speak with a healthcare provider before starting a calcium supplement.
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In the process of covalent bonding, atoms share electrons. This means that?
A covalent bond is likely to form between two nonmetals with electron deficiency. Hence, they will share their valence electrons each other to achieve octet.
What is covalent bonding?A covalent bond is formed between two non-metals through sharing of valence electrons between atoms. For example carbon and oxygen are non metals forming the covalent compound CO.
The number of shared pair of electron depends on the valence of each atoms. For example in HCl, both atoms shares one electron to each other.
In a covalent compound, if the difference in electronegativity between two atoms is significant, the shared pair of electrons attracts towards the highly electronegative atom and resulting charge separation make them polar compounds.
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