Đáp án:
25% và 75%
Giải thích các bước giải:
\(\begin{array}{l}
Mhh = 1,53125 \times 16 = 24,5\\
M{H_2} = 2\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,7,5\\
\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \searrow \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \nearrow \\
\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Mhh = 24,5\\
\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \nearrow \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \searrow \\
M{O_2} = 32\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,22,5\\
\frac{{n{H_2}}}{{n{O_2}}} = \frac{{7,5}}{{22,5}} = \frac{1}{3}\\
\% {H_2} = \frac{1}{4} \times 100\% = 25\% \\
\% {O_2} = 100 - 25 = 75\%
\end{array}\)
