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 120 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
Gracias!

vickybb89

  • Member
  • Posts: 347
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Polarity of Water Polarity of Water
Ripples in Water Ripples in Water
A demonstration engine showing the amount of water that can be circulated through the cooling ... A demonstration engine showing the amount of water that can be circulated through the cooling ...
Each cell nucleus throughout the body contains the genes, DNA, and chromosomes that make up the ... Each cell nucleus throughout the body contains the genes, DNA, and chromosomes that make up the ...
Your Body Is Mostly Water Your Body Is Mostly Water
Severe arthritis can make everyday activities, like writing, typing, and handling objects Severe arthritis can make everyday activities, like writing, typing, and handling objects
Video: hGH, Thyroid hormones & Aldosterone

For a complete list of videos, visit our video library