Which of the following polyatomic ions is the most negatively ...

[jrubin]

Which of the following polyatomic ions is the most negatively charged?
 
  A) ammonium
  B) carbonate
  C) phosphate
  D) acetate

Question 2

The concentration of carbon monoxide in a sample of air is 9.2 ppm. There are ________ molecules of CO in 1.00 L of this air at 755 torr and 23C.
 
  A) 3.8  10-7
  B) 2.2  1021
  C) 2.9  1018
  D) 1.7  1020
  E) 2.3  1017

[ApricotDream]

Answer to Question 1

C

Answer to Question 2

E

[jrubin]

Thanks for the timely response, appreciate it

[bblaney]

YES! Correct, THANKS for helping me on my review