A sample of gas (24.2 g) initially at 4.00 atm was compressed ...

[colton]

A sample of gas (24.2 g) initially at 4.00 atm was compressed from 8.00 L to 2.00 L at constant temperature. After the compression, the gas pressure was ________ atm.
 
  A) 4.00
  B) 2.00
  C) 1.00
  D) 8.00
  E) 16.0

Question 2

What is the purpose of adding EDTA to prepared foods?
 
  A) to keep ions such as Ca2+ in solution so the foods look good
  B) to complex trace metal ions that catalyze decomposition reactions
  C) to complex iron (III) ions so they can catalyze protein decomposition on cooking
  D) to aid in browning of the surface during cooking
  E) to prevent dissolution of the container in the food when stored for long periods of time

Question 3

If the number of moles of gas is doubled at constant temperature and volume, the pressure of the gas
 
  A) is halved.
  B) is doubled.
  C) is quadrupled.
  D) remains the same.

[ryhom]

Answer to Question 1

E

Answer to Question 2

B

Answer to Question 3

B