13.45 Calculate the molality of each of the following solutions: (a) 8.66 g of benzene (C6H6) dissolved in 23.6 g of carbon tetrachloride (CCL4), (b) 4.80 g of NaCl dissolved in 0.350 L S bms tolonof water.

Q: 4. What is the Molality of a solution containing 7.78g of Urea [(NH2)2CO2] in 203g of water? 5. Lead…

A: According to our policy, we should solve one question (If any subparts are present then the first…

Q: A 15.1 m solution of HCl (molar mass = 36.46 g/mol) has a density of 1.18 g/mL. What is the osmotic…

A:

Q: dussi2olod onomon 3. A beverage contains tartaric acid, H2C4H4O6 (molar mass 150.1g/mole) a…

A:

Q: 6. An aqueous solution of a nonelectrolyte boils at 100.82°C. What is the molality of this solution?

A: The liquid boils at 100.82° C.Therefore elevation of boiling point is 100.82° C - 100° C = 0.82° C…

Q: The boiling point of ethanol CH3CH,OH is 78.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte that…

A: Number of grams of ethanol given = 224.0 g Molar mass of testosterone = 288.4 g/mol Elevation in…

Q: 1. What is the concentration of a solution of sodium carbonate containing 26.5 g of solute in 500 ml…

A:

Q: The nonvolatile, nonelectrolyte testosterone , C19H28O2 (288.4 g/mol), is soluble in chloroform,…

A: The molar mass of testosterone, C19H28O2, M =288.4 g/mol The volume of the solution in chloroform,…

Q: 12.61 The molar mass of benzoic acid (C,H,COOH) determined by measuring the freezing-point…

A:

Q: Vodka is 37 % by mass ethanol (C2H5OH) and has a density of 0.92 g/mL. What is the molarity (of…

A:

Q: A dilute aqueous solution of an organic compound soluble in water is formed by dissolving 4 g of the…

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

Q: An aqueous solution containing 15.1 g of an unknown molecular (nonelectrolyte) compound in 108.5 g…

A: Given: The mass of an unknown compound and the mass of water is 15.1 g and 108.5 g, respectively.…

Q: 1. Calculate the molal concentration of a solution that contains 28.2 g of aluminium hydroxide,…

A: (1) Given data is as follows:              The mass of aluminium hydroxide = 28.2 g The volume of…

Q: The osmotic pressure of a solution containing 7.0 g of insulin per liter is 23 torr at 25 °C. What…

A: Given, mass of insulin =7 g temperature of solution=25°C=25+273.15 K=298.15 K R(universal gas…

Q: Vanillin, C8H8O3, occurs naturally in vanilla extract and is used as a flavoring agent. A 47.2 mg…

A: Molality of the solution is the number of moles of solute present in one kilogram of solvent. It is…

Q: An aqueous solution contains 0.582g of dextran in 106mL of solution at 21°C. It has an osmotic…

A: Given: The mass of dextran is 0.582 g.   The given volume is 106 mL. It is known that 1 mL = 0.001…

Q: The average osmotic pressure of blood is 7.7 atm at 25 °C. What molarity of glucose (C6H12O6) will…

A: Osmotic pressure of blood=7.7 zatmT=25°Cmolarity=?∴ Osmotic pressure    π=CRT…

Q: What is the osmotic pressure of an aqueous solution of 3.75 g of Sr(NO,), in water at 25 °C? The…

A: Osmotic pressure

Q: irin. Polyté that dissolves in chloroform is culate the vapor pressure of the solution at 25 °C when…

A: Given 8.475g of aspirin is added to 237g of chloroform  Vapour pressure of chloroform is 173.11mmHg…

Q: A 31.9 g sample of a K2SO4 dissolves in 180. g of water. If the Kf  (H2O) = 1.86 oC/molal.  What is…

A: Depression in freezing point is given by  depression in freezing point = Kf X m X i  where m =…

Q: A solution containing 25.0 g of protein per liter has an osmotic pressure of 0.0109 atm at 37°C.…

A: Given :  osmotic pressure = 0.0109atm  temperature = 37°C  amount of protein per liter = 25.0 g  To…

Q: mole fraction

A:

Q: 3) 21.0 g of a nonelectrolyte is dissolved in 0.200 kg of water. The resulting solution freezes at…

A: Answer    Freezing point Tf  = Kf  × molality   Molality  = mass…

Q: Consider two ionic solids, both composed of singly chargedions, that have different lattice…

A: Lattice Energy is defined as the energy required to break the crystal into its constituent particles…

Q: Calculate the osmotic pressure of a solution containing 18.75 mg of hemoglobin in 15.0 mL of…

A: Use the formula :

Q: Nicotinamide is an important vitamin for metabolism and is soluble in water. Deficiency of this…

A:

Q: When 0.494 g of K3Fe(CN)6 is dissolved in 100.0 g of water,the freezing point is found to be…

A: The number of ions  present in K3Fe(CN)6 has to be given,

Q: What is the molality (m) of 3.5 mol of sugar in 2.5 kg of water?

A: Molality id defined as the number of moles of solute present in 1 Kg  of solvent. It is calculated…

Q: 7 b) With the addition of 1.00 kg of antifreeze to a vehicle radiator containing 4450 g of water,…

A: Given data, Mass of antifreeze = 1.00Kg = 1000g Mass of water = 4450 g = 4.450 Kg Temperature change…

Q: If a 36.0-g sample of a molecular compound (i-1) is dissolved in 224.0 g of water, the freezing…

A:

Q: 4) 4) What molality of pentane is obtained by dissolving 35.0 g pentane, C5H12, in 230.0 g hexane,…

A: 4. Given,  Mass of solute (C5H12) = 35 g  Molar mass of C5H12  = 72.15 g/mol Moles of C5H12 =…

Q: The average osmotic pressure of human blood is 7.7 atm at 40C. (a) What should the total…

A: Osmotic pressure is defined as the pressure required to apply on the solution side to stop the…

Q: 14. How many grams of potassium hydroxide are needed to make 600.0mL of 0.450M potassium hydroxide…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: An aqueous solution containing 17.5 g of an unknown molecular (nonelectrolyte) compound in 100.0 g…

A:

Q: The average osmotic pressure of blood at 25°C is 7.7 atm. How many grams of glucose (C6H12O6) is…

A: Given Values: Temperature = 25°C = 25 + 273 = 298°K Osmotic pressure of the blood = 7.7 atm Volume…

Q: 11. Which of the following aqueous solutions has the highest boiling point (assume 100% dissociation…

A: Tips to do question- Boiling Point increase as the concentration Increase Boiling point also…

Q: Nicotinamide is an important vitamin for metabolism and is soluble in water. Deficiency of this…

A: The Molecular mass of Nicotinamide can be calculated by help of depression in freezing point. It has…

Q: What mass of calcium chloride (CaCl,) are added when the boiling point of water increases from 100.0…

A:

Q: How many grams and moles of glucose, C6H12O6, should be dissolved in 250 mL of solution to make a…

A:

Q: What is the molality of 14.5 g of MgSO4 in 285.5 mL of water at 40 °C?

A: given mass of MgSO4 = 14.5 g volume of water = 285.5 ml

Q: If a solution containing 30.0 g of protein per litrehasca measured osmotic pressure of 9.4 mm Hg at…

A: Given : Mass of protein = 30.0 g Volume of solution = 1.0 L Temperature of solution = 25 oC And…

Q: 14. What is the molality of a solution that contains 0.500 mol HC₂H3O2 in 0.125 kg H₂O?

A: Given, moles of HC2H3O2 = 0.500 mol mass of water solvent = 0.125 kg Molality of the solution = ?

Q: The antifreeze in most automobile radiators is a mixture of equal volumes of ethylene glycol and…

A: Moles of C2H4(OH)2 = Mass of ethylene glycolMolar mass of ethylene glycol = 2.22 x 10362 = 35.8 mol…

Q: 5. In Çalifornia, it is illegal to drive with blood alcohol contents >0.08%. This is a mass…

A: Alcohol = C2H5OH Molality = moles of solutemass of solvent (in kg)               = 0.08×100046×100…

Q: What is the molality of a solution containing 6.85 g of urea [(NH2),CO] in 177.5 g of water?

A: Molar mass of urea = 60 gm

Q: What is the molality of 64g of methanol (CH3OH) dissolved in 500g of ethanol (C2H;OH)?

A:

Q: What is the molar mass of nonelectrolyre if 6.02 grams dossolved in 30.0 grams of benzene freezes at…

A: Given: Mass of non-electrolyte solute dissolved = 6.02 g. Mass of solvent i.e. benzene = 30.0 g =…

Q: What is the molarity of NaOH in a 3 molal solution given the density is 1.1 g/ml?

A: The molarity of sodium hydroxide in a 3 molal solution can be calculated as3 molal solutions of NaOH…

Q: Calculate the osmotic pressure (in atm) of a solution containing 1.50 g ethylene glycol (C2H6O2) in…

A: Record the given data, The mass of the ethylene glycol is 1.50 g The molar mass of ethylene glycol…