Question

3Cu(s) + 8HNO3(aq) → 3Cu(NO3)2(s) + 2NO(g) + 4H2O(l)

Answer 1

Mole ratio:

3 Cu(s) + 8 HNO₃(aq) = 3 Cu(NO₃)₂(s) + 2 NO(g) + 4 H₂O(l)

3 moles Cu(NO₃)₂ ----------------- 4 moles H₂O
3.3 moles Cu(NO₃)₂ ---------------- ??

moles H₂O = 3.3 x 4 / 3

moles H₂O = 13.2 / 3

=> 4.4 moles of H₂O

Answer C