1.30 dm³ of water at 65°c are saturated by 2.2  moles of lead (II) trioxonitrate (v) and 1.30dm³ of water 15°c are saturated by 0.50 mole of the same salt.

1.30 dm³ of water at 65°c are saturated by 2.2  moles of lead (II) trioxonitrate (v) and 1.30dm³ of water 15°c are saturated by 0.50 mole of the same salt.

If 4.0dm³ of the saturated solution are cooled from 65°c to 15°c, calculate the amount of solute that will be deposited in (a) moles (b) grams​.