摘要:8.(1) m(S)= 0.2mol/L×0.1L×32g/mol+0.8mol×32g/mol=26.2g (2)n(Na2SO3)=12.6g÷126g/mol=0.1mol n(SO2)=0.1mol- 0.2mol/L×0.1L=0.08mol V(SO2)=0.08mol×22.4L/mol=1.792L 即1792mL

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