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

Author Question: A 0.286-g sample of gas occupies 125 mL at 60. cm of Hg and 25C. What is the molar mass of the gas? ... (Read 115 times)

lilldybug07

  • Hero Member
  • *****
  • Posts: 546
on: Aug 27, 2018
A 0.286-g sample of gas occupies 125 mL at 60. cm of Hg and 25C. What is the molar mass of the gas?
 
  A) 5.9 g/mol
  B) 44 g/mol
  C) 59 g/mol
  D) 71 g/mol

Question 2

A solution is prepared by adding 40.00 g of lactose (milk sugar) to 110.0 g of water at 55 C The partial pressure of water above the solution is ________ torr.
 
  The vapor pressure of pure water at 55 C is 118.0 torr. The MW of lactose is 342.3 g/mol.
  A) 2.216
  B) 125.5
  C) 225.9
  D) 115.8
  E) 86.5


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

fwbard

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

D


lilldybug07

  • Member
  • Posts: 546
Reply 2 on: Aug 27, 2018
Great answer, keep it coming :)

nyrave

  • Member
  • Posts: 344
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Sample preoperative checklist. Sample preoperative checklist.
The Mass-Luminosity Relation The Mass-Luminosity Relation
Bell Curve for Intelligence IQ scores for a population-based sample usually fall into this kind of Bell Curve for Intelligence IQ scores for a population-based sample usually fall into this kind of
Sample Student Externship Form Sample Student Externship Form
What is the mass of 1.20 x 1024 molecules of sulfur dioxide, SO2? What is the mass of 1.20 x 1024 molecules of sulfur dioxide, SO2?
A random sample of 87 airline pilots recruited by an airline service had an average yearly ... A random sample of 87 airline pilots recruited by an airline service had an average yearly ...
Video: Spermatogenesis Animation

For a complete list of videos, visit our video library