1. Calculate the molecular weight of a small protein if a 0.55 g sample dissolved in 180 mL of water has an osmotic pressure of 9.2 mmHg at 25°C. (R = 0.0821 L · atm/(K · mol)) 2. What is the molality of a solution that contains 19.16 g of glucose, C6H12O6, in 228.5 g of water? (Molar mass of Glucose = 180.00 g/mol) %3D

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Q: Calculate the molality of a 32.3% (by mass) aqueous solution of nitric acid. Calculate the molality…

A: Molality is equal to the number of moles of solute dissolve in per kg of solvent. It is denoted by…

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Q: Maltose, C12H22O11, is a sugar produced by malting (sprouting) grain. A solution of maltose at 25°C…

A: Since the osmotic pressure is given by  Osmotic pressure = i X CRT where i = Van't Hoff factor =1…

Q: What is the molality of a solution made by dissolving 49.4 grams of (NH 4) 2SO 4 in 775 grams of…

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Q: Calculate the molality of a solution containing (a) 0.65 mol glucose, C6H,206, in 250 gm water (b)…

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Q: What is the molality of a solution containing 10.0 g of N a 2 S O 4 dissolved in 1000.0 g of water?

A: Introduction: Molality is the number of moles of solute in per kilogram of solute. It can be…

Q: What mass of fructose, C5H10O5 (molar mass is 150.2 g), in grams must be added to 115 g H2O to lower…

A: The question is based on the concept of solutions.   Molality is a method of expressing…

Q: The density of a 2.45 M aqueous solution of methanol (CH3OH) is 0.976g/mL. The molarity is 2.45 M…

A:

Q: The hemoglobin found in human red blood cells has a molar mass of about 6.2 ×× 104 g/mol. What…

A: The given problem can be solved by using the formula given below as; Note: In the given case,…

Q: What is the molality of a solution that contains 128 g of CH3OH in 108 g of water?

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Q: What is the osmotic pressure in atm of a solution prepared from 12.4 g of the electrolyte HCl and…

A: Given : Mass of HCl = 12.4 g Volume of solution = 0.500 L And temperature = 18 oC Since mass of HCl…

Q: What is the molality of a solution in which 13.7 g of sodium sulfate, Na2SO4, has been dissolved in…

A:

Q: At what temperature would a 0.291 M solution of magnesium sulfate (MgSO₄) in water exhibit an…

A: Given that:  Molar concentration of the solution (M) = 0.291 M…

Q: If a solution is prepared by dissolving 17.75 g sulfuric acid, H2SO4, in enough water to make 100.0…

A: Concentration in terms of molarity is defined as the moles of solute present per litre of the…

Q: What is the osmotic pressure of a 0.431 M solution of sodium phosphate

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Q: The solubility of NaCl in water at 0ᵒC is 35.7 g per 100 mL of water. A solution containing 406.8 g…

A: Solubility is defined as the ability of a solute to dissolve in a solvent to form a solution.  Given…

Q: At 50°C, the solubility of KCL in water is 42.6 g in 100 g water. What is the molality of KCL in…

A: Here we are required to find the molality of KCl solution

Q: 6 What is the molality of the solution obtained by dissolving 2.25 g of glucose in 240 grams of…

A: Given,

Q: An aqueous solution is prepared by dissolving 72.0 g glucose (180.18 g/mol) in enough 1. water to…

A: Number of moles of glucose (solute) is calculated as follows,

Q: 3. A 100. mL aqueous solution prepared by dissolving 25.0 g of a non-electrolyte solute had a…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A 0.396 molal glocuse has a density of 1.16 g/ml. What is the molarity of glucose in the solution?…

A: The mole of solute present in one kilogram of the solvent is known as molality. The mole of solute…

Q: Calculate the molality of a solution containing:      a. 0.65 mol glucose, C6H12O6, in 250 grams of…

A: The amount of the solute that is dissolved in a given volume of the solvent to furnish the solution…

Q: حل هذه الاسئلة

A: Since you have posted multiple questions, we are entitled to answer the first question only.

Q: A 1.50 M solution of CaCl 2 (MM=109.9 g/mol)in water has a density of 1.11 g/mL. What is the…

A: Molality is defined as number of moles of solute present in 1 kg of solvent.

Q: What is the molal concentration of KCl in a solution prepared by adding 2.11 mol of KCl to 889 g of…

A: Molal concentration is defined as the moles of solute present per Kg of the solvent  hence molal…

Q: 56.3  mg sample of protein A in 1.5 mL of water has an osmotic pressure of 0.295  atm, what is the…

A:

Q: A solution of an 1.24 g of an unknown protein dissolved in enough water to make 0.020 L of solution…

A: Given, Weight of the protein =1.24g Volume of the solution = 0.02L Osmotic pressure = 224 torr =…

Q: A 0.608 g sample of a protein was dissolved in 25.00 mL of water and the resulting osmotic pressure…

A: Ans : Mass of protien sample, (w) = 0.608g Volume of solution, (v) = 25.00ml = 0.025l Temperature,…

Q: The concentration of NaCl(aq) in a beaker is 2.00 M. What is the molality of the NaCl solution?…

A: The Molarity of NaCl = 2.00 M Means moles of NaCl = 2.00 mol present in volume of 1 L water . So…

Q: If a 50.3 mg sample of protein Bin 1.75 mL of water has an osmotic pressure of 0.218 atm, what is…

A: Osmotic pressure of a solution, π =CRT, where, C= molar concentration of the solution, R = universal…

Q: A solution of H2SO4(aq) with a molal concentration of 2.24 ? has a density of 1.135 g/mL. What is…

A: Given : Molality = 2.24 m Density = 1.135g.ml-1

Q: An aqueous solution of human serum albumin protein has an osmotic pressure of 5.85 mmHg at 25 ° C.…

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Q: What is the freezing point of an aqueous 1.22 molal KCl solution? (Kf = 1.86°C/m)

A: Given data: The molality of KCl solution m=1.22 m. Depression in freezing point constant…

Q: The density of a 2.45 M aqueous solution of methanol (CH3OH) is 0.976 g/m. What is the molality of…

A: Molarity of CH3OH (M) = 2.45 M Molar mass of methanol = 32.04 g/mol density of methanol = 0.976 g/L

Q: 100 mg of a protein is dissolved in just enough water to make 10.0 mL of solution. If this solution…

A: Osmotic pressure is calculated by using the formula: π=i×C×R×T        OR π=i×Mass of solute…

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Q: At 31°C, what is the osmotic pressure of a 0.2% NaCl by weight aqueous solution? Assume the density…

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Q: Cholesterol is an important compound in the body, but in excess has been implicated as a cause of…

A: Given data : Mass of cholestrol = 4.82 gms                         Mass of Benzene = 112 gms…

Q: An aqueous solution of methanol (MM = 32.04 g/mol) has a molality of 3.21 m and a density of 1.15…

A: Please find the attachment.

Q: The freezing point of an aqueous solution containing 35 g of an nonelectrolyte in 150 mL water is…

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Q: what is the molality of a solution in which 55g pf sucrose are dissolved in 950 mL of water?

A: Molarity is the ratio of moles of substance to a kilogram of the solvent. Molality(m)=Moles of…

Q: 0.9% (w/v) sodium chloride (MW = 58.44 g/mol) solution (normal saline solution) has an osmotic…

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Q: What is the osmotic pressure (in atm) of a solution of a protein (molar mass - 6.27X 10 a/mol) at…

A: Given Mass = 0.160 g Molar mass = 6.27 * 103 g/mol Temperature = 30°C = 303°K Volume of solution =…

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Q: At what temperature would a 0.0411 M solution of calcium nitrate (Ca(NO3)2) in water exhibit an…

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Q: A solution was in a prepared by dissolving 5.46 g of para-dichlorobenzene (C6H4Cl2) in 50.0 mL…

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Q: calculate the molality. (d) 0.372 g of histamine, C5H9N, in 125 g of chloroform, CHCl3

A: Note - Since the chemical formula given for histamine in the question is incorrect, we will consider…

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.