как?????????????пожалуйста

1) m(CO2) = 4.4 г

n = m/M = 4.4/44 = 0.1 моль

n = N/Na ; 0.1 = N/6.02*10; N = 0.602 * 10

N(H2O) = 0.602*10

n = N/Na = 0.602 * 10;

n = 0.602*10/6.02*10 = 0.1 моль

n = m/M

0.1 = m/18; m = 1.8 г.

Вдповдь А.

2) m(O2) = 8 г ==gt; n(O2) = 8/32 = 0.25 моль

N = 0.25 * 6.02 * 10 = 1.505 * 10;

m(H2) = 80 г ==gt; n(H2) = 80/2 = 40 моль

N = 40 * 6.02 * 10 = 240.8 * 10

У водню бльше, вдповдь Б)