0.0883 QUESTION 18 Calculate the molality of a solution containing 14.3 g of NaCl in 42.2 g of water. (3sf) QUESTION 19 Calculate the molality of 6.0 M H2SO4 solution. The density of the solution is 1.34 g/mL. (3sf) QUESTION 20 The density of a 20.3 M CH3OH (methanol) solution is 0.858 g/mL. What is the molality of this solution? H20 is the solvent. (3s QUESTI ON 31

0.0883 QUESTION 18 Calculate the molality of a solution containing 14.3 g of NaCl in 42.2 g of water. (3sf) QUESTION 19 Calculate the molality of 6.0 M H2SO4 solution. The density of the solution is 1.34 g/mL. (3sf) QUESTION 20 The density of a 20.3 M CH3OH (methanol) solution is 0.858 g/mL. What is the molality of this solution? H20 is the solvent. (3s QUESTI ON 31

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

8
True or false: The mass of K2Cr2O7 (molar mass= 294.19 g/mol-1) needed to make 235 mL of a 0.170 M solution, is 117 g. A) true B) false
In antifreeze, ethylene glycol (dissolved in water) is 44% volume per volume, Antifreeze has a density of 1.23 g/ml. Ethylene glycol has a density of 1.10 g/ml. Ethylene glycol is C2H6O2. (6) What is the molarity of ethylene glycol in antifreeze? (6) What is the molality of ethylene glycol in antifreeze?
What is the concentration in molarity of an aqueous solution which contains 20.01% by mass acetonitrile (MM = 41.05 g/mol)? The density of the solution is 0.810 g/mL.
What’s the molarity of a Mg(OH)2 (Molar mass = 58.32 g/mol) solution containing 9.555 grams of Mg(OH)2 in 0.675 L of H2O?
The cafeteria decides to save money by using concentrated acetic acid (CH3COOH at 17.5 mol/L) and diluting it with water to produce vinegar (5.00% m/v acetic acid). a) What is the concentration of vinegar in mol/L? b) What volume of vinegar can the cafeteria produce from a 4.00 L jug of concentrated acetic acid? c) How much water would they need to add to the concentrated acetic acid?
A student dissolves 14. g of styrene (C₂H₂) in 200. mL of a solvent with a density of 1.03 g/mL.. The student notices that the volume of the solvent does not change when the styrene dissolves in it. Calculate the molarity and molality of the student's solution. Round both of your answers to 2 significant digits. molarity molality 1 0 0.0 0.0 8 X G
If 11.2 g of naphthalene, C 10H 8 (Molar mass= 128 g/mol), is dissolved in 107.8 g of chloroform, CHCI 3 (Molar mass = 118 g/mol), what is the molality of the solution? 0.0875 m 12.4 m 0.811 m 0.0941 m 0.0969 m
what is the concentration ofglucose c6h12o6MM=180.16g/mol solution that was prepared by dissolving 50.500g of glucose in 500.0ml of solution?assume the solution has a density of 1.00g/ml %mm M
7.What volume (in ml) of a solution that is 23% in glucose(C6H12O6) by mass contains 162.5g of glucose? (The density of the solution is 1.03g/ml.) Group of answer choices 520 ml 686 ml 728 ml 820 ml
At what temperature will the water in a car radiator boil if 500 mL of diethylene glycol (MM 106) is added to 1.00 L of water (density = 1.00 g / mL)? The density of diethylene glycol is 1.118 g / mL. (Kb = 0.512 ° C / m) a) Mention the colligative property that applies in this problem. b) Write the formula that applies to the colligative property in part (a). c) From the formula written in part (b), what is the concentration that is related to this colligative property? d) Name the solute ________________ and the solvent _______________. e) Carry out the corresponding calculation.
8) What is the mass percent of a solution made by adding 90.1 g of KCl to 525 mL of water? ( density of water is 1.00g/ml)