The mole

25.0 cm³ of 1.00 mol/dm³ nitric acid reacts completely with excess copper(II) carbonate to form hydrated copper(II) nitrate, Cu(NO₃)₂·3H₂O. The equation shows that 2 moles of HNO₃ produce 1 mole of Cu(NO₃)₂·3H₂O. What is the mass of Cu(NO₃)₂·3H₂O formed? (Ar: Cu=64, N=14, O=16, H=1)