This topic contains a solution. Click here to go to the answer

Author Question: Determine the freezing point of a solution that contains 78.8 g of naphthalene (C10H8, molar mass = ... (Read 63 times)

wenmo

  • Hero Member
  • *****
  • Posts: 540

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


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by wenmo on Nov 18, 2019

katieost

  • Sr. Member
  • ****
  • Posts: 358
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 45% of students answer this correctly




wenmo

  • Member
  • Posts: 540
Reply 2 on: Nov 18, 2019
Wow, this really help


sailorcrescent

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

For a complete list of videos, visit our video library