Em tham khảo nha:
\(\begin{array}{l}
a)\\
{n_{{O_2}}} = \dfrac{N}{N} = 1\,mol\\
{n_{{N_2}}} = \dfrac{{2N}}{N} = 2\,mol\\
{n_{C{O_2}}} = \dfrac{{1,5N}}{N} = 1\,,5mol\\
{m_{hh}} = 1 \times 32 + 2 \times 28 + 1,5 \times 44 = 154g\\
b)\\
{m_{hh}} = 0,1 \times 56 + 0,2 \times 64 + 0,3 \times 65 + 0,25 \times 27 = 44,65g\\
c)\\
{m_{hh}} = 0,5 \times 98 + 0,3 \times 63 + 0,1 \times 36,5 + 0,15 \times 98 = 86,25g\\
d)\\
{n_{{O_2}}} = \dfrac{{2,24}}{{22,4}} = 0,1\,mol\\
{n_{{H_2}}} = \dfrac{{1,12}}{{22,4}} = 0,05\,mol\\
{n_{HCl}} = \dfrac{{6,72}}{{22,4}} = 0,3\,mol\\
{n_{C{O_2}}} = \dfrac{{0,56}}{{22,4}} = 0,025\,mol\\
{m_{hh}} = 0,1 \times 32 + 0,05 \times 2 + 0,3 \times 36,5 + 0,025 \times 44 = 15,35g
\end{array}\)
