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1. How many grams are there in 0.7 mol of Fe(NO3)?2. How many molecules are therein 0.06 mol of KI?3. How many grams are there in1.806. 1022 molecules of MgCl, 4.0.08 mol of compound X, O, has mass 11.36 g. What is theatomic mass of element X?
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