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��(ji��n)�ε��f(shu��),��SO₂��Ó��^(gu��)��Ƿփɲ��ɵģ�

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SO₂+H₂O→H₂SO₃ (1)

�ڶ��,��H2SO3�c�ܽ��ˮ�еĉA��Ó��,��҂��õ�Ó��ǚ��cÓ��

NaOH��Ó��ˇ�Ǟ��˿˷�ʯ��ʯ/ʯ�ҷ��׽Y(ji��)��ȱ�c(di��n)��l(f��)չ��(l��i)��,��ÉA��}��NaOH,��Na2CO3��NaHCO3,��Na2SO3�ȵ�ˮ��Һ��SO2,��պ�Įa(ch��n)��Ը��N��ʽ��ջ��ѭ�h(hu��n)��,��һ��(g��)ʯ�ҷ��(y��ng)��ʯ�һ�ʯ��ʯ��SO2��Һ��,��Һѭ�h(hu��n)ʹ�ã��SO2�t��ʯ��ʽ��,��Ɂ��}��ʯ��,��

NaOH��Һ��SO2��a(ch��n)��c��^(gu��)�̷֞��ײ��

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2NaOH+SO₂→Na₂SO₃+H₂O ��1��

Na₂SO₃+SO₂+H₂O→2NaHSO₃ ��2��

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NaOH+SO₂→NaHSO₃ ��3��

��(y��ng)��2��,��(y��ng)��1��ɵ�Na₂SO₃�Ծ��Ó��SO₂��(y��ng)��2��ͷ��(y��ng)��3��ɵ�NaHSO₃�t��پ��Ó��SO₂��,��

��(y��ng)��1��,��(d��ng)�ŷ�Һ��Ҫ��Na₂SO₃��Ó�򷴑�(y��ng)��Ҫ��1��ʽ�M(j��n)�Еr(sh��),��2.0Ħ��NaOHÓ��1.0Ħ��SO₂,�� NaOH��һ��(y��ng)��3��,��(d��ng)�ŷ�Һ��Ҫ��NaHSO₃ ��Ó�򷴑�(y��ng)��Ҫ��3��ʽ�M(j��n)�Еr(sh��),��1.0Ħ��NaOHÓ��1.0Ħ��SO₂,�� NaOH��?j��)H��ǰ�ߵ�1/2��

��(j��)��ԭ��,��O(sh��)Ӌ(j��)��Ó��ϵ�y(t��ng)��NaOHÓ��SO₂��,��Ҫ��NaHSO₃��ʽ�ŷţ��ϱ��C1.0Ħ��NaOHÓ��1.0Ħ��SO₂,��@һ�c(di��n)��(du��)��Ó��ɱ��Ƿǳ��Ҫ��,��

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��a(ch��n)Na₂SO₃ �a(ch��n)Ʒ�r(sh��)��ҺҪ�M(j��n)��к�̎��,��к�̎��Ŀ��ǌ��Һ�е�NaHSO₃ �к͞�Na2SO₃,��

NaHSO₃+NaOH →Na₂SO₃+H₂O ��4��

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