« previous next »

Author Question: The concentration of urea (MW = 60.0 g/mol) in a solution prepared by dissolving 16 g of urea in 39 ... (Read 103 times)

ec501234

  • Hero Member
  • *****
  • Posts: 573
on: Aug 27, 2018
The concentration of urea (MW = 60.0 g/mol) in a solution prepared by dissolving 16 g of urea in 39 g of H2O is ________ molal.
 
  A) 96
  B) 6.8
  C) 0.68
  D) 6.3
  E) 0.11

Question 2

One mole of which gas has the greatest density at STP?
 
  A) Ar
  B) N2
  C) CO
  D) All three gases have the same density.


karlss

  • Sr. Member
  • ****
  • Posts: 321
Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Urinometer. In this procedure, a urine sample and urinometer are placed within a tube, and the liqui Urinometer. In this procedure, a urine sample and urinometer are placed within a tube, and the liqui
Dependence of initial velocity on substrate concentration Dependence of initial velocity on substrate concentration
Benedict's Solution Benedict's Solution
IgG after treatment with urea plus mercaptoethanol. IgG after treatment with urea plus mercaptoethanol.
Smoke Concentration in London, 1585–1940 Smoke Concentration in London, 1585–1940
Delta Method Solution Delta Method Solution
Video: Calvin Cycle Explained!

For a complete list of videos, visit our video library