Homework Help: Chemistry 1

Posted by Emily on Thursday, January 3, 2013 at 7:40pm.

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?

Thank you in advance :)

Chemistry 1 - DrBob222, Friday, January 4, 2013 at 1:27am
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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