How many grams are in 3 moles of NaCl

Question

How many grams are in 3 moles of NaCl

Answer 1

You don't find how many moles are in 1 gram, but rather you find how many grams are in 1 mole.

Na = 23

Cl = 34.5

Total = 57.5 g in 1 mole NaCl

3 moles NaCl x 57.5 g/mole = 172.5 grams in 3 moles 

Answer 2

First you need to calculate how many grams there are in one mole of your molecule. To do this, you need to visit your periodic table. Find out how many grams per mole you have of just Na and CL. Add those. If you need just 3 moles of them, what should you do? Per the rules, I will not provide you the answer. You'll find these are actually quite basic and you'll get the hang of it quickly.