Saturday, February 11, 2012 at 6:03am.
5. How many grams of KNO3 will be required to prepare 800 mL of 1.40 M KNO3?
How many moles KNO3 will you need? That is M x L = moles KNO3.
Then moles KNO3 = grams KNO3/molar mass KNO3.
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