Question

Calculate the molality (m) of tetrahydrofuranin a solution produced by combining 3020 g of the solute C₄H₈O with5400 g of the solvent diethyl ether.

Molar Mass(g/mol)

C4H8O	72.12
(C2H5)2O	74.12

Density(kg/m³):

C4H8O	889.2
(C2H5)2O	713.8

Name/Formula:

tetrahydrofuran
C₄H₈O
diethyl ether
(C₂H₅)₂O

What volume (L) of the solvent acetone shouldbe mixed with0.320 L of the soluteCH₂Cl₂ to produce asolution that is 1.19 mmethylenechloride.

Molar Mass(g/mol)

CH2Cl2	84.93
(CH3)2CO	58.05

Density(g/mL):

CH2Cl2	1.327
(CH3)2CO	0.7899

Name/Formula:

methylene chloride
CH₂Cl₂
acetone
(CH₃)₂CO

Calculate the molality (m) of a 6630 g sample of a solution ofthe solute water dissolved in the solvent tetrahydrofuran if thesample contains 108 mol ofH₂O.

Molar Mass(g/mol)

H2O	18.015
C4H8O	72.12

Density(kg/L):

H2O	0.9982
C4H8O	0.8892

Name/Formula:

water
H₂O
tetrahydrofuran
C₄H₈O

A 2.64 m solution of the solute(CH₃)₂CO dissolvedin the solvent C₂H₅OH isavailable. Calculate the mass (kg) of the solution that must betaken to obtain 771 g ofacetone.

Molar Mass(g/mol)

(CH3)2CO	58.05
C2H5OH	46.07

Density(kg/L):

(CH3)2CO	0.7899
C2H5OH	0.7893

Name/Formula:

acetone
(CH₃)₂CO
ethanol
C₂H₅OH

What volume (mL) of the soluteC₆H₆ should be added to 3.74 Lof the solvent C₄H₈O to generate a solution thatis 0.698 m benzene.

Molar Mass(g/mol)

C6H6	78.12
C4H8O	72.12

Density(kg/L):

C6H6	0.8786
C4H8O	0.8892

Name/Formula:

benzene
C₆H₆
tetrahydrofuran
C₄H₈O

Calculate the molality (m) of acetone in asolution made by combining 1450 g of thesolute (CH₃)₂CO with9120 mL of the solventtetrahydrofuran.

Molar Mass(g/mol)

(CH3)2CO	58.05
C4H8O	72.12

Density(kg/m³):

(CH3)2CO	789.9
C4H8O	889.2

Name/Formula:

acetone
(CH₃)₂CO
tetrahydrofuran
C₄H₈O