Homework Help: Chemistry

Posted by Cecelia on Tuesday, October 4, 2011 at 8:31am.

A 36.0mL sample of 1.20 M KBr and a 56.0mL sample of 0.700 M KBr are mixed. The solution is then heated to evaporate water until the total volume is 60.0mL. What is the molarity of the KBr in the final solution?

Chemistry - DrBob222, Tuesday, October 4, 2011 at 11:13am
moles soln 1 = M x L = ?
moles soln 2 = M x L = ?
final molarity = total moles/total L. total L will be 60.0 mL = 0.060L.

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