# Chemistry 1

We are working on molarity of a solution in my class, and I am a little stumped on how to set the problems up. Here is one question from my homework.

How many grams of NaCl are needed to make 575mL of 1.5 M NaCl solution?

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1. How many mols do you need? That's M x L = mols NaCl.
Then mols NaCl = grams NaCl/molar mass NaCl. You know mols and molar mass; solve for grams.

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posted by DrBob222

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