CuSO4 + 2NaOH = Cu(OH)2 + Na2SO4
m(CuSO4) = 40 ×4% /100%= 1.6г
n(CuSO4)= 1.6/ 160 = 0.01моль
n(CuSO4) : n(Cu(OH)2 = 1 : 1
m(Cu(OH)2)= 0.01моль × 98г/моль = 0.98г
CuSO4 + 2NaOH = Cu(OH)2 + Na2SO4
m(CuSO4) = 40 ×4% /100%= 1.6г
n(CuSO4)= 1.6/ 160 = 0.01моль
n(CuSO4) : n(Cu(OH)2 = 1 : 1
m(Cu(OH)2)= 0.01моль × 98г/моль = 0.98г