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Chemistry

Name: Anonymous 2009-03-22 22:06

2KCN + MgBr2 ---> Mg(CN)2 + 2KBr

KCN = 458 mL 0.389M concentration
MgBr2 = 20 mL 0.425M concentration
0.3829g Magnesium Cyanide is formed, 59% yield.

How do I figure out the molarity of the KBr solution?

Name: Anonymous 2009-03-23 6:14

you should be underage b&d or something.

HINT: n=m/Mr
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