Question

Дано:

NaHCO₃

w(N)-? w(H)-? w(C)-? w(O)-?
Срочно пожалуста

Answer 1

M(NaHCO3) = 23 + 1 + 12 + 3×16 = 84 г/моль

w(Na) = 23/84 = 0,2738 (27,38%)

w(H) = 1/84 = 0,0119 (1,19%)

w(C) = 12/84 = 0,1429 (14,29%)

w(O) = 3×16/84 = 0,5714 (57,14%)