This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Determine the freezing point of a solution that contains 78.8 g of naphthalene (C10H8, molar mass = ... (Read 111 times)

wenmo

  • Hero Member
  • *****
  • Posts: 540
on: Nov 18, 2019

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
Chemistry: A Molecular Approach (Canadian) ¦ Tro, Fridgen, Shaw ¦ 2nd Edition
Buy Test-Bank


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
Reply #1 on: Nov 18, 2019
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
Great answer, keep it coming :)

patma1981

  • Member
  • Posts: 292
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Label the four mutated DNA segments shown below according to the type of point mutation each ... Label the four mutated DNA segments shown below according to the type of point mutation each ...
How to find the average atomic mass of an element How to find the average atomic mass of an element
Alternative for pass-point test Alternative for pass-point test
Mass Wasting Forms Mass Wasting Forms
Solve the solution set of the following system using Graphical Method. Solve the solution set of the following system using Graphical Method.
If P(θ) = (√3 /2, -1/ 2), determine the coordinates of P (θ + 90 °) using the unit circle If P(θ) = (√3 /2, -1/ 2), determine the coordinates of P (θ + 90 °) using the unit circle
Video: Second Messengers in the Inositol-lipid Signaling Pathway

For a complete list of videos, visit our video library