Homework Help: Chemistry

Posted by Colleena on Wednesday, May 25, 2011 at 10:42pm.

What are the steps in solving this problem? There was 455 mL of water added to 60 mL of a 2M ammonia solution. What is the new molarity?

Chemistry - DrBob222, Thursday, May 26, 2011 at 12:37am
The dilution formula works for these.
2M x [60/(60+455)] = ??M
You have diluted it by a factor of 60/515. That assumes the volumes are additive (and you can't be sure they are).

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