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April 24, 2014

Homework Help: Science

Posted by Anonymous on Sunday, February 6, 2011 at 1:23pm.

If I want to make a solution that has a 5% concentration of salt, is it correct for me to have 380mL water and 20g salt?

My method behind this was that I wanted a 400g solution, and so since 1mL water is equal to 1g water, I did:

400x0.95=380g water or 380mL water
and
400x0.05=20g salt

Is this correct? If not, why and what would be the correct way to find this?

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