m(р-ра) = 150 g
W(HCl) = 20%
m(воды) = 150 ml (мл=г)
W1(HCl) -?
m(HCl) = 0.2*150 = 30 g
m(р-ра1) = 150 + 150 = 300 g
W1(HCl) = 30/300 = 0.1 = 10%
m(р-ра) = 150 g
W(HCl) = 20%
m(воды) = 150 ml (мл=г)
W1(HCl) -?
m(HCl) = 0.2*150 = 30 g
m(р-ра1) = 150 + 150 = 300 g
W1(HCl) = 30/300 = 0.1 = 10%