5- A 0.750 M solution of H204 in water has a density of 1.046 g/mL at 20 °C. What is the concentration of this solution in (a) mole fraction, (b) mass percent, and (c) molality? The molar mass of H204 is 98.1 g/mol e nol sinusA

Q: What is the molality of a solution prepared by dissolving 85.0  g of ethylene glycol, HOCH2CH2OH, in…

A: The molality of a solution prepared by dissolving 85.0  g of ethylene glycol, HOCH2CH2OH, in 1.55  L…

Q: 12. How many grams of Ca(OH)2 need to be dissolved in 1.50 kg of water in a 0.250m solution?

A: 12) Given, Molality of the solution = 0.250 m = 0.250 mol/kg Mass of water solvent = 1.50 kg Mass…

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A: Since moles = mass / molecular weight hence moles of compound = 6.45 X 10-2 / molecular weight of…

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A:

Q: What mass of H2O is needed to dissolve 5.39 g Na2CrO4 to produce a solution having a molality of…

A: Given:The mass of Na2CrO4 is 5.39 g.  Molality is 0.389 m. The density of the solution is 1 g/mL.…

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A: Hence you posted multiple choice questions, I will answer the first three sub questions. (1) mass of…

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A:

Q: What is the molality of LiCl in a solution that is 9.0% by mass LiCl and has a density of 1.00g/ml?

A: Given; % by mass of LiCl = 9.0% Density = 1.00g/ml Molality of LiCl solution = ? Note:  Molar mass…

Q: Hydrochloric acid is usually obtained as a 36% hydrochloric acid solution. If it is 13.42 M, what is…

A:

Q: 5) Creatinine, C4H7N3O, is a by-product of muscle metabolism, and creatinine levels in the body are…

A: The mass of creatinine present in 10.0 ml blood sample is calculated below.

Q: Calculate the molality of a solution formed by adding 2.60 g NH,Cl to 19.2 g of water.

A: Molality is a method of expression concentration. It is denoted by  m. molality, m =moles of…

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A:

Q: At 25.0 °C, 100.0 mL of an aqueous solution containing 67.8 mg of a molecular solute has an osmotic…

A:

Q: (a)Determine the molality of a 10% w/w solution if the molecular weight of the solute is 120 g/mol.…

A: All the necessary calculations have been done in the following step.

Q: 4. A compound contains 42.9% C, 2.4% H, 16.6% N, and 38.1% O by mass. The addition of 3.16 g of this…

A:

Q: The density of an aqueous solution containing 15.0 percent ethanol (C₂H5OH) by mass is 0.979- your…

A: Given :  Mass percentage of ethanol = 15.0 ℅  Density of solution = 0.979 g/ml

Q: What is the molality of a 10% w/w NaCl solution?

A: Molality is defined as number of moles of solute divide by mass of solvent in kilograms

Q: 4. The solubility of nitrogen gas at 25°C and 1 atm is 6.8X10-4 mol/L. What is the concentration (in…

A: Solubility of nitrogen gas at 25◦C and 1 atm pressure is 6.8 * 10-4 mol / L. The partial…

Q: A solution contains 6.75 x 10-2 g of a compound in 8.35 g of ethanol. The molality of the solution…

A: Molality (m) of a solution is defined as the number of moles of solute per kg of the solvent. Thus,…

Q: When 3.4 x 10-4 kg of a certain chemical compound is dissolved in 0.563 L of water at 23˚C, the…

A:

Q: What is the freezing point of an aqueous solution that contains 1.3 moles of MgCl2 per 1 kg water?

A: The freezing point has to be calculated

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A: Given information,    Mass of NH3 = 30.6 g    Mass of water = 81.3 g    Density of solution = 0.982…

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Q: 9. What is the molality of a solution of 34.0 g of acetone (CH3COCH3) in 300.0 mL water (mw of…

A:

Q: f you have 6.5 g of sodium chloride (MM = 58.44 g mol-1 ) dissolved in 250 mL of solution, what is…

A: Molarity is defined as the ratio of the number of moles of solute to the volume of the solution in…

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A: Molality of a solution is calculated by dividing the number of moles of solute by per kilogram of…

Q: 10.Pure ethanol (C2H5OH) typically freezes at -114.6 °C, with a Kf value of -1.99 °C/m. If 50.00 g…

A: Pure ethanol freezes at -114.5 °c 50.00 g of Ca(NO3)2 is added in 700 g of ethanol. Freezing point…

Q: What is the molality of a solution prepared by dissolving 85.0  g of ethylene glycol, HOCH2CH2OH, in…

A: The molality of a solution prepared by dissolving 85.0  g of ethylene glycol, HOCH2CH2OH, in 1.55  L…

Q: A 2.34 L aqueous solution of KQH contains 185 g of KOH. The solution has a density of 1.29 g/mL.…

A: Given dataVolume of solution : V = 2.34 L = 2340 mL Mass of KOH  =185 gdensity of solution Molar…

Q: alculate the molality of a solution formed by adding 2.60 g NH4 olality: to 19.1 g of water.

A:

Q: An aqueous solution of hydrofluoric acid is 30.0% HF, by mass, and has a density of 1.101 g cm³.…

A: Given data :

Q: A solution is made up by dissolving 15.0 g MgSO4.7H₂O in 60.0 g of water. What is the molality of…

A: The given data is as follows:     The mass of MgSO4.7H2O = 15.0 g The mass of water = 60.0 g = 0.060…

Q: When 3.25 g of a nonelectrolyte solute is dissolved in water to make 165 mL of solution at 24 °C,…

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Q: Lauryl alcohol, C12 H25 OH, is prepared from coconut oil. It is used to make sodium lauryl sulfate,…

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.