Question

How many grams of NaBr are contained in 85.0 mL of a 2.10 M NaBr solution?
I'm not sure how to go about this..

Answer 1

Remember the definitions:
M = moles/L
You know M and you know L, solve for moles.

Then moles = grams/molar mass.
You know moles and molar mass, solve for grams.