Determine the freezing point of a solution that contains 78.8 g ...

[wenmo]

Question 1

Determine the freezing point depression of a solution that contains 30.7 g glycerin (C3H8O3, molar mass = 92.09 g mol-1) in 376 mL of water. Some possibly useful constants for water are Kf = 1.86 °C m-1 and Kb = 0.512 °C m-1.
◦ 0.654 °C
◦ 3.33 °C
◦ 0.887 °C
◦ 1.65 °C
◦ 2.54 °C

Question 2

Determine the freezing point of a solution that contains 78.8 g of naphthalene (C10H8, molar mass = 128.16 g mol-1) dissolved in 722 mL of benzene (d = 0.877 g mL-1). Pure benzene has a melting point of 5.50 °C and a freezing point depression constant of 4.90 °C m-1.
◦ 4.17 °C
◦ 1.68 °C
◦ 1.33 °C
◦ 4.76 °C
◦ 0.74 °C

[katieost]

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[wenmo]

Thanks for the timely response, appreciate it

[Jsherida]

Gracias!