\(n_S=1mol\)
\(n_{NaOH}=\dfrac{100}{40}=2,5mol\)
3S+6NaOH\(\rightarrow\)2Na2S+Na2SO3+3H2O
- Tỉ lệ: \(\dfrac{1}{3}\approx0,33< \dfrac{2,5}{6}\approx0,417\)\(\rightarrow\)Tính sản phẩm theo S
\(n_{Na_2S}=\dfrac{2}{3}n_S=\dfrac{2}{3}.1.\dfrac{80}{100}=\dfrac{8}{15}mol\)
\(m_{Na_2S}=\dfrac{8}{15}.78=41,6g\)
\(n_{Na_2SO_3}=\dfrac{1}{3}n_S=\dfrac{1}{3}.1.\dfrac{80}{100}=\dfrac{4}{15}mol\)
\(m_{Na_2SO_3}=\dfrac{4}{15}.126=33,6g\)