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 96 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!

JaynaD87

  • Member
  • Posts: 368
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Water-Reactive Salts Water-Reactive Salts
Controlling access to water in order to gain political and strategic advantage in Gaza Controlling access to water in order to gain political and strategic advantage in Gaza
Work of Running Water Work of Running Water
Compound Angle Formulas Compound Angle Formulas
Use a compound angle addition formula to determine an equivalent trig expression for cos(x + ... Use a compound angle addition formula to determine an equivalent trig expression for cos(x + ...
A thimble of water contains 4.0 x 1021 molecules. The number of moles of H2O is: A thimble of water contains 4.0 x 1021 molecules. The number of moles of H2O is:
Video: Protein catabolism - deamination

For a complete list of videos, visit our video library