A solution consists of 35.1 g of potassium bromide (KBr), 116.9 g water, and has a volume of 128 mL. Calculate the weight percent of KBr, the molality of KBr, the mole fraction of KBr, and the molarity of KBr in the solution. weight percent = molality = mole fraction = molarity = % m M

A solution consists of 35.1 g of potassium bromide (KBr), 116.9 g water, and has a volume of 128 mL. Calculate the weight percent of KBr, the molality of KBr, the mole fraction of KBr, and the molarity of KBr in the solution. weight percent = molality = mole fraction = molarity = % m M

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter12: Solutions

Section: Chapter Questions

Problem 12.26QE

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A solution consists of 35.1 g of potassium bromide (KBr), 116.9 g water, and has a volume of 128 mL.
Calculate the weight percent of KBr, the molality of KBr, the mole fraction of KBr, and the molarity of KBr in the solution.
weight percent =
molality=
mole fraction =
molarity =
%
m
M

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Step 2: Calculation of moles for KBr and water and conversion of mass in kg:

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Step 3: Calculation of weight percentage:

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Step 4: Calculation of molality:

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Step 5: Calculation of mole fraction

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Step 6: Calculation of molarity

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