A stock solution of sodium chloride solution was prepared (at 25°C) by dissolving 250 mg of sodium chloride (58.44 g/mol)in enough water (18.015 g/mol) to make a total volume of 50 milliliters. Density of sodium chloride (at 25°C) = 2.17 g/mL 13. What is the molality of a solution when 12 g of NH3 (17.031 g/mol) is dissolved in 250 g water?A. 2.818x10-3 mB. 2.689 mC. 2.818 mD. 2.689x10-314. What is the factor of calcium chloride?A. 1B.2C. 3D. 415. What is the factor of oxalic acid (C2H2O4)?A. 1B.2C. 3D. 4НО,glOHC1O

Molality (m) : Number of moles of solute (n) present in 1Kg of solvent (W) is called molality (m)…

Answered: 13. What is the molality of a solution…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section: Chapter Questions

Problem 90QRT

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A stock solution of sodium chloride solution was prepared (at 25°C) by dissolving 250 mg of sodium chloride (58.44 g/mol) in enough water (18.015 g/mol) to make a total volume of 50 milliliters. Density of sodium chloride (at 25°C) = 2.17 g/mL

13. What is the molality of a solution when 12 g of NH3 (17.031 g/mol) is dissolved in 250 g water?
A. 2.818x10-3 m
B. 2.689 m
C. 2.818 m
D. 2.689x10-3
14. What is the factor of calcium chloride?
A. 1
B.2
C. 3
D. 4
15. What is the factor of oxalic acid (C2H2O4)?
A. 1
B.2
C. 3
D. 4
НО,
gl
OH
C1O

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