Acetonitrile (CH3 CN) is a polar organic solvent that dissolves a wide range of solutes, including many salts. The density of a 1.80 M LiBr solution in acetonitrile is 0.826 g/cm³. ▼ ▼ Part A Calculate the concentration of the solution in molality. 2.69 mol/kg Submit ✓ Correct Part B Previous Answers Calculate the concentration of the solution in mole fraction of LiBr. [5] ΑΣΦ 0.0937 Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining + Part C Calculate the concentration of the solution in mass percentage of CH3 CN.

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Acetonitrile (CH3 CN) is a polar organic solvent
that dissolves a wide range of solutes, including
many salts. The density of a 1.80 M LiBr solution
in acetonitrile is 0.826 g/cm³.
▼
Part A
Calculate the concentration of the solution in molality.
2.69 mol/kg
Submit
Part B
Correct
Calculate the concentration of the solution in mole fraction of LiBr.
Previous Answers
VG ΑΣΦ
0.0937
Submit
Part C
Previous Answers Request Answer
X Incorrect; Try Again; 5 attempts remaining
?
Calculate the concentration of the solution in mass percentage of CH3 CN.
VE ΑΣΦ
ww
?
%
Transcribed Image Text:Acetonitrile (CH3 CN) is a polar organic solvent that dissolves a wide range of solutes, including many salts. The density of a 1.80 M LiBr solution in acetonitrile is 0.826 g/cm³. ▼ Part A Calculate the concentration of the solution in molality. 2.69 mol/kg Submit Part B Correct Calculate the concentration of the solution in mole fraction of LiBr. Previous Answers VG ΑΣΦ 0.0937 Submit Part C Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining ? Calculate the concentration of the solution in mass percentage of CH3 CN. VE ΑΣΦ ww ? %
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