Дано
m = 40 г
w(NaCl) = 5% = 0.05
Решение
m(NaCl) = mw(NaCl) = 40 * 0.05 = 2 г
n(NaCl) = m(NaCl) / M(NaCl) = 2 / (23 + 35.5) = 2 / 58.5 = 0.034 моль
AgNO3 + NaCl = AgCl + NaNO3
n(AgCl) = n(NaCl) = 0.034 моль
m(AgCl) = n(AgCl)M(AgCl) = 0.034 * (108 + 35.5) = 0.034 * 143.5 = 4.88 г
ответ: 4.88 г
Дано
m = 40 г
w(NaCl) = 5% = 0.05
Решение
m(NaCl) = mw(NaCl) = 40 * 0.05 = 2 г
n(NaCl) = m(NaCl) / M(NaCl) = 2 / (23 + 35.5) = 2 / 58.5 = 0.034 моль
AgNO3 + NaCl = AgCl + NaNO3
n(AgCl) = n(NaCl) = 0.034 моль
m(AgCl) = n(AgCl)M(AgCl) = 0.034 * (108 + 35.5) = 0.034 * 143.5 = 4.88 г
ответ: 4.88 г