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

Author Question: An unknown nonelectrolyte and nonvolatile compound is dissolved in enough pure water to make 348 mL ... (Read 123 times)

tnt_battle

  • Hero Member
  • *****
  • Posts: 556
on: Nov 18, 2019

Question 1

Calculate the mass of maltose, C12H22O11, contained in 725.0 mL of solution if the measured vapour pressure of the solution is 41.6 mbar at 30 °C. The vapour pressure of pure water at 30 °C is 42.40 mbar; assume no change in volume occurs upon dissolution.
◦ 94.1 g
◦ 265 g
◦ 482 g
◦ 163 g
◦ 329 g

Question 2

An unknown nonelectrolyte and nonvolatile compound is dissolved in enough pure water to make 348 mL of solution. The vapour pressure above the solution drops from 198.7 mbar to 196.7 mbar when 100.0 g of the compound is dissolved at constant temperature. Determine the molar mass of the unknown compound. Assume no change in volume occurs upon dissolution.
◦ 180 g mol-1
◦ 509 g mol-1
◦ 689 g mol-1
◦ 342 g mol-1
◦ 243 g mol-1
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 tnt_battle on Nov 18, 2019

kardosa007

  • Sr. Member
  • ****
  • Posts: 300
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 25% of students answer this correctly


tnt_battle

  • Member
  • Posts: 556
Reply 2 on: Nov 18, 2019
Wow, this really help

ttt030911

  • Member
  • Posts: 315
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Chinese Water Deer Chinese Water Deer
water molecules water molecules
Blocked at every turn by congressional Republicans who hated him, President Obama turned to techniqu Blocked at every turn by congressional Republicans who hated him, President Obama turned to techniqu
A food diary can help patients identify unhealthy eating habits and make healthy choices. A food diary can help patients identify unhealthy eating habits and make healthy choices.
The Excretory System Water and waste products from cells The Excretory System Water and waste products from cells
The compound eye of a deerfly The compound eye of a deerfly
Video: Digestive chemicals - water, gastric acid, bile & bicarbonate

For a complete list of videos, visit our video library