Posted by lori on Sunday, July 31, 2011 at 11:29pm.
moles K3PO4 = M x L = 0.080 x 0.0250L = 0.002. Since there are three K^+ in 1 molecule of K3PO4 there will be 0.002*3 = 0.006 moles K^+ in that sample. The others are done the same way.
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