February 21, 2017

Homework Help: Chemistry

Posted by Katherine on Monday, April 9, 2012 at 9:59pm.

What NaCl concentration results when 209 mL of an 0.660 M NaCl solution is mixed with 492 mL of a 0.270 M NaCl solution?

__ mol/.209 L = 0.660 M
__ mol/.492 L = 0.270 M

.. I have no idea how to solve this. I have no idea why I even set up the equation above when it's asking me to solve for molarity and not mols.. Do i just add 0.660 + 0.270 together since it's mixed together? Can it be that simple? Please help!

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