\(n_S=\dfrac{m}{M}=\dfrac{2,3}{32}=0,071875\left(mol\right)\\ n_{O_2\left(dktc\right)}=\dfrac{V}{22,4}=\dfrac{1,12}{22,4}=0,05\left(mol\right)\)
\(PTHH:S+O_2-^{t^o}>SO_2\)
tỉ lệ: 1 : 1 : 1
n(mol): 0,071875 0,05
n(mol pu) 0,05-->0,05-->0,05
CL 0,21875-->0--->0,05
\(\dfrac{n_S}{1}>\dfrac{n_{O_2}}{1}\left(\dfrac{0,071875}{1}>\dfrac{0,05}{1}\right)\)
=> S dư,`O_2` hết
=> tính theo `O_2`
\(m_{S\left(dư\right)}=n\cdot M=0,21875\cdot32=0,7\left(g\right)\\ m_{SO_2}=n\cdot M=0,05\cdot\left(32+16\cdot2\right)=3,2\left(g\right)\)
sao đốt lưu huỳnh thì sản phẩm là cacbondioxit=))