1) 9.6 / 109.6 = 0.08759, или же 8.759 %
2) c = n / v
n = v * c
n = 0.2 * 0.4 = 0.08
M(NaCl) = 35.5 + 23 = 58.5
m = 58.5 * 0.08 = 4.68 грамм
1) 9.6 / 109.6 = 0.08759, или же 8.759 %
2) c = n / v
n = v * c
n = 0.2 * 0.4 = 0.08
M(NaCl) = 35.5 + 23 = 58.5
m = 58.5 * 0.08 = 4.68 грамм