m(р-ра) = 210 g
W(CaCl2) = 16%
m(осадка) - ?
m(CaCl2) = 0.16 * 210 = 33.6 g
n(CaCl2) = 33.6 / 111 = 0.3 mol
0.3 mol x mol
Na2SiO3 + CaCl2 = CaSiO3 + 2NaCl
1 mol 1 mol
1:0.3 = 1:x
x = 0.3
m(CaSiO3) = 0.3 * 116 = 34.8 g
m(р-ра) = 210 g
W(CaCl2) = 16%
m(осадка) - ?
m(CaCl2) = 0.16 * 210 = 33.6 g
n(CaCl2) = 33.6 / 111 = 0.3 mol
0.3 mol x mol
Na2SiO3 + CaCl2 = CaSiO3 + 2NaCl
1 mol 1 mol
1:0.3 = 1:x
x = 0.3
m(CaSiO3) = 0.3 * 116 = 34.8 g