Answered: What mass of water must be used to…

What mass of water must be used to dissolve 20.0 grams of ethanol, C2H5OH, to prepare a 0.0500 molal solution of ethanol? A 4.0 kg B 7.18 kg (c) 3.76 kg D 6.35 kg E) 8.70 kg

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter10: Solutions

Section: Chapter Questions

Problem 75QAP: A certain gaseous solute dissolves in water, evolving 12.0 kJ of heat. Its solubility at 25C and...

See similar textbooks

Related questions

Q: Glycerol is used in manufacture of plastics and is a water-soluble liquid with a density of…

Q: A solution is prepared by dissolving 4.39 g of ordinary sugar (sucrose, C12H011, molecular weight =…

Q: The freezing point of pure benzene (C₆H₆) is 5.49 °C. The freezing point of a solution made using…

A: Pure benzene (solvent) freezing point = Tp = 5.49 °C Freezing point of Solution = Ts = -13.0 °C Kf…

Q: What is the boiling point of an aqueous C₆H₁₂O₆ solution made to be 2.0 m C₆H₁₂O₆? (Kb for water is…

A: Recall the relation for elevation of boiling point∆Tb ∆Tb=Kb×mHere,ebullioscopic…

Q: The freezing point of pure benzene is 5.49 °C. The freezing point of a solution made using toluene…

A: freezing point is defined as a temperature at which liquid is converted into solid.

Q: Calculate the freezing point (in degrees C) of a solution made by dissolving 9.73 g of urea…

Q: if kf for water is 1.86°C/m, what is the freezing point of an aqueous solution of Sodium chloride…

Q: What is the molality of an antifreeze solution (non-ionizing) in a radiator if the freezing point is…

A: According to Rault's law When solute particle present in a solvent to make a solution then freezing…

Q: A solution containing 20.0 g of an unknown liquid and 110.0 g water has a freezing point of -1.32…

Q: A 50% antifreeze solution is about 16 molal. What is the freezing point of the solution? FPH₂O = 0.0…

A: Given the molality of the solution, m = 16 m Freezing point depression constant of water, Kf = 0.86…

Q: A solution is made using 79.9 g of phenol (MM = 94.11 g/mol) and 90.0 g of acetone (MM = 58.08…

A: given, the mass of phenol = 79.9 g molar mass of phenol = 94.11 g/mol mass of acetone = 90.0 g molar…

Q: What is the new boiling point of a solution prepared by adding 96.0 g of sodium chloride (i =2) to…

A: Colligative properties: The colligative properties are those properties of solutions that depend on…

Q: A student prepares a solution containing 45.4 grams of sucrose (C12H22011, 342.29 g/mol) in 250. g…

Q: The molar mass of sulfuric acid is 98.08 g/mol. What is the molality of a 10.97 mass% sulfuric acid…

A: Molality : if 1 mole of any substance is present in 1000 gm solvent then the solution is 1m.

Q: The freezing point of pure benzene (CH) is 5.50°C. The freezing point of a solution containing 5.00…

Q: 3.140 molal solution of NaCl is prepared. How many grams of NaCl are present in a sample containing…

A: The question is based on the concept of solutions. molality is defined as number of moles of solute…

Q: What is the molality of a solution dissolved in chloroform that boils at 62.8°C? Boiling point of…

A: Molality is defined as the number of moles of solute divided by the mass of solvent in kg. Its SI…

Q: A 0.01 molal solution of K3Fe9(CN)6 freezes at -0.062C. What is the apparent degree of dissociation?…

Q: which

A: We will find out lowest Vapour pressure

Q: What is the mole fraction of water in an aqueous solution (density = 1.20 g/mL) that is 2.5 m…

A: Density of aqueous solution = 1.20 g/mL Molality = 2.5m = number of moles/weight of solvent in kg…

Q: What is the mass fraction of salt? A. 0.0476 B. 0.0500 C. 0.9524 D. 0.0876 What is the mole fraction…

A: Since you have posted questions with subparts , as per guidelines we can answer only three per…

Q: A student prepares a solution containing 33.39 grams of sucrose (C12H22O11, 342.29 g/mol) in 0.241…

Q: A. Calculate the molality, freezing point, and boiling point for each of the following water…

Q: The vapor pressure of benzene is 100.0 mmHg at 26.1°C. Calculate the vapor pressure of a solution…

Q: Consider a solution of the solute CHCI3 in the solvent CHBR3. If the molality of the solution is…

A: Dipression in freezing point (∆Tf) for any solution is directly proportional to the molality (m) of…

Q: A solution containing 77.635 g of an unknown compound and 431.27 g of ethyl ether? The solution had…

A: The molecular mass of the compound = 96.18 g/mL

Q: An aqueous solution of 3.1472 molal HNO3 was prepared by mixing HNO3 pellets in water. How many…

A: The correct option is:

Q: What is the freezing point of an aqueous solution of a nonvolatile solute that has a boiling point…

A: Answer - The correct option is (c) –8.94°C Solution -

Q: a. Is -8.0C°. What is the molal concentration of the solution? (K; =-1 a-1.86 b-4.3 C-4.5 d-14.8…

A: Given, Freezing point of the solution = Tf = - 8.0 0C What is the molal concentration or molality…

Q: What is the molality of a solution of 25.0 g of ethanol (CH3CH2OH) in 200.0 mL water (mw of ethanol…

Q: 2 What mass of water must be used to dissolve 20.0 grams of ethanol, C2H5OH, to prepare a 0.0500…

Q: Choose the correct answer ?

Q: Determine the freezing point of a solution prepared by dissolving 10.0 g of camphor (C10H16O) in…

A: Given information:Mass of camphor is 10.0 gMass of benzene is 90.0 gKf is 5.12oC/mnormal freezing…

Q: The freezing point of benzene C6H6 is 5.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte that…

Q: The freezing point of an aqueous solution of MgBr, was found to be -5.7 °C. Calculate the boiling…

A: The given information is: Tf(solvent) = -5.7°C Tf(solution) = 0°C Calculating the depression in the…

Q: A 0.194-g sample of a nonvolatile solid solute dissolves in 9.82 g of cyclohexane. The change in…

Q: A student prepares a solution by dissolving 1.88 g of para-dichlorobenzene (C6H4Cl2, = 147.0 g/mol)…

A: Given; The given mass of C6H4Cl2, (Wb) = 1.88 g. The molar mass of C6H4Cl2, (Mb) = 147.0 g/mol. The…

Q: 1. Determine the freezing point if 10 grams of sucrose (C12H22O11) was dissolved in 100mL of water.

A: According to our policy, as there is more than one question only the first question is solved here.…

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

Q: .mheducation.com/ext/map/ part 2 Homework i 04 es Saved Determine the freezing point of an aqueous…

A: Introduction : Depression in freezing point is a colligative property of of dilute solutions…

Q: A 0.720 g sample of polyvinylchloride (PVC) is dissolved in 250 mL of a suitable solvent at 25.0 °C.…

A: In this question, we will determine the molar mass of the PVC from the given solution. You can see…

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

A: Given that , 0.9 % (w/v) NaCl i.e. 0.9 g NaCl in 100 mL water Osmotic pressure = 3.91 atm at 25oC…

Q: 8) A solution is prepared by dissolving 40.0 g of sucrose, C12H22O11, in 250. g of water at 25°C.…

A: When a nonvolatile solute is dissolved into a volatile solvent the vapor pressure of the solvent…

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

A: Given: Density of sodium chloride = 2.16 g/mL Molar mass of NaCl = 58.44 g/mol T(K) = T(Co) + 273=…

Q: Given that the solution of NaCl (MM = 58.5 g/mol) in 1 kg water has a molality of 0.5 m, which of…

A: Given, Solution of NaCl Mass of water = 1 Kg Molality of solution = 0.5 m = 0.5 mol/Kg Molar mass of…

Q: The density of a 3.539 M HN03 aqueous solution is 1.150 g-mL-1 at 20 °C. What is the molal…

A: Using the given Molarity we can find molality of solution. Given molarity= 3.539M

Q: What is the molality of p-dichlorobenzene (C6H4Cl2, 147 g/mol) when 2.65 g is dissolved in 50.0 mL…

Q: Q1: The density of 78.5 g of methanol (Mwt. = 32) is 0.89 g/ml. What is the Molality of the…

A: Molality (m), or molal concentration, is the amount of a substance dissolved in a certain mass of…

Q: A 3.140 molal solution of NaCl is prepared. How many grams of NaCl are present in a sample…

Question

What mass of water must be used to dissolve 20.0 grams of ethanol, C2H5OH, to prepare a 0.0500 molal solution of ethanol?
A 4.0 kg
B 7.18 kg
(c) 3.76 kg
D 6.35 kg
E) 8.70 kg

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

A sucrose (C12H22O11) solution that is 45.0% sucrose by mass has a density of 1.203 g/mL at 25C. Calculate its (a) molarity. (b) molality. (c) vapor pressure(vpH2Oat25C=23.76mmHg). (d) normal boiling point.
A gaseous solute dissolves in water. The solution process has H=15 kJ. Its solubility at 22C and 6.00 atm is 0.0300 M. Would you expect the solubility to be greater or less at (a) 22C and 1 atm? (a) 18C and 6 atm? (a) 15C and 10 atm? (a) 35C and 3 atm?
Urea, (NH2)2CO, is dissolved in 250.0 g of water. The solution freezes at 0.085C. How many grams of urea were dissolved to make this solution?
A certain gaseous solute dissolves in water, evolving 12.0 kJ of heat. Its solubility at 25C and 4.00 atm is 0.0200 M. Would you expect the solubility to be greater or less than 0.0200 M at (a) 5C and 6 atm? (b) 50C and 2 atm? (b) 20C and 4 atm? (b) 25C and 1 atm?
The solubility of lead nitrate at 100C is 140.0 g/100 g water. A solution at 100C consists of 57.0 g of lead nitrate in 64.0 g of water. When the solution is cooled 10C to 25.0 g of lead nitrate crystallize out. What is the solubility of lead nitrate in g/100 g water at 10C?
A 12-oz (355-mL) Pepsi contains 38.9 mg caffeine (molar mass = 194.2 g/mol). Assume that the Pepsi, mainly water, has a density of 1.01 g/mL. For such a Pepsi, calculate: (a) its caffeine concentration in ppm; (b) its molarity of caffeine; and (c) the molality of caffeine.
Calculate the freezing point and normal boiling points of each of the following aqueous solutions. (a) 2.63 m acetic acid (b) 33.0 % by mass lactose, C12H22O11 (c) 32.15 mL of ethylene glycol, C2H6O2(d=1.113g/mL) in 624 mL of water (d=1.00g/mL)
Glycerin, C3H8O3, is a nonvolatile liquid. What is the vapor pressure of a solution made by adding 164 g glycerin to 338 mL H2O at 39.8C? The vapor pressure of pure water at 39.8C is 54.74 torr and its density is 0.992 g/cm3.
Which of the following will have the lowest total vapor pressure at 25C? a. pure water (vapor pressure = 23.8 torr at 25C) b. a solution of glucose in water with C6H12O6=0.01 c. a solution of sodium chloride in water with NaCl = 0.01 d. a solution of methanol in water with CH3OH=0.2 (Consider the vapor pressure of both methanol [143 torr at 25C] and water.)
Ice Cream A rock salt (NaCl), ice, and water mixture isused to cool milk and cream to make homemade icecream. How many grams of rock salt must be added towater to lower the freezing point by 10.0°C?