Posted by Robert on Tuesday, March 19, 2013 at 9:49pm.
59.0 mL of a 1.80 M solution is diluted to a total volume of 268 mL. A 134mL portion of that solution is diluted by adding 171 mL of water. What is the final concentration? Assume the volumes are additive.

Chemistry  Devron, Tuesday, March 19, 2013 at 10:00pm
1.80*(59/268)=concentration
concentration*(134/171)= concentration 2

Chemistry  DrBob222, Tuesday, March 19, 2013 at 11:10pm
almost
1.80M x (59.0 mL/268 mL) = about 0.4 but that is not exact.
Then 0.4 x [134 mL/(134 mL + 171 mL)]

Chemistry  Devron, Tuesday, March 19, 2013 at 11:14pm
Read it halfway; I thought it was going to say making a solution to 171mL using 134mL of the previous. Dr. Bob222 is correct.
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