4HNO3(l)+Cu(s)→Cu(NO3)2(aq)+2NO2(g)+2H2O(l)
Convert number of atoms of copper to moles
1.000×1023(6.022×10231mole)=0.16606moles
Convert moles of copper to moles of water:
0.16606molesCu(1molesCu2molesH2O)=0.33212molesH2O
Convert moles of water to mass of water
0.33212molesH2O(1moleH2O18.0.15gH2O)=5.983gH2O
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