Question

670mL of 2M soduim chloride (NaCl)

Answer 1

Yes..?

Answer 2

im tryna learn how to work it out

Answer 3

C1*V1=C2*V2

C= Concentration
V= Volume.
You're lacking one variable to solve this equation, you need to know either what concentration C2 or V2 has, If these are your values for C1 & V1.
If its your C2 or V2 (desired concetration & volume) You need to figure out either C1 or V1 inorder to solve this.

You should visist the Chemistry group for this type of questions in the future.

Answer 4

now thst i have my fw how can i break down 670ml

Answer 5

Decreasing V therefore increasing C.
Another hint is "which has lowest boiling point Water or NaCl?"

Answer 6

The chemistry group is found here: http://openstudy.com/study#/groups/Chemistry.