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SO₂+H₂O→H₂SO₃ (1)

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NaOH��Ó��ˇ�Ǟ��˿˷�ʯ��ʯ/ʯ�ҷ��׽Y(ji��)��ȱ�c(di��n)��l(f��)չ��ġ��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��,��SO2�t��ʯ��ʽ��,��Ɂ��}��ʯ�ࡣ

NaOH��Һ��SO2��a(ch��n)��c��^�̷֞��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��H��ǰ�ߵ�1/2,��

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