Gọi 2a là mol của HCHO
a là mol của CH3CHO
\(\rightarrow60a+44a=15,6\Leftrightarrow a=0,15\)
\(\left\{{}\begin{matrix}n_{CH3CHO}=0,15\left(mol\right)\\n_{HCHO}=0,3\left(mol\right)\end{matrix}\right.\)
\(CH_2CHO+2AgNO_3+3NH_3+H_2O\rightarrow CH_3COONH_4+2Ag+2NH_4NO_3\)
0,15___________________________________________________0,3_______
\(HCHO+AgNO_3+6NH_3+2H_2O\rightarrow\left(NH_4\right)_2CO_3+4Ag+4NH_4NO_3\)
0,3_______________________________________________1,2_______________
\(\rightarrow m_{Ag}=\left(0,3+1,2\right).108=162\left(g\right)\)