Posted by Ashley on Thursday, November 4, 2010 at 9:24pm.
How many moles to prepare the 30 mL? That is M x L = ?? moles K3PO4.
How many mols are in the 21 mL? That will be ?? moles x (21/30) = xx moles.
How many K^+ there. Just 3 x that amount.
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