Calculate the number of moles of sodium chloride needed to make ...

[theo]

Calculate the number of moles of sodium chloride needed to make 4.0 L of a 3.0 M solution.
 
  A) 12 moles of sodium chloride
  B) 3.0 moles of sodium chloride
  C) 4.0 moles of sodium chloride
  D) 7.0 moles of sodium chloride

Question 2

Substance A contains 80 carbon and 20 hydrogen. Substance B contains 83 carbon and 17 hydrogen. A and B are the same substance.
 
  Indicate whether the statement is true or false

[Brenm]

Answer to Question 1

A

Answer to Question 2

FALSE

[theo]

Wow, this really help

[kishoreddi]

Thanks for the timely response, appreciate it