Why is it when So3 is added to water the ph Decreases?

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Why is it when So3 is added to water the ph Decreases?

2007-07-21 10:24:15 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

2 answers

because when the SO3 is dissolved into water it forms an aqueous acidic solution of sulfuric acid and it is known that acids(some like nitric acid) have a low pH.
equation:SO3(g)+H2O(l)=H2SO4(aq)

2007-07-21 14:53:12 · answer #1 · answered by Dr. Eddie 6 · 0⤊ 0⤋

SO3 + 2H2O ===> H2SO4

H2SO4 ===> H+ + HSO4-

HSO4- ===> H+ + SO4=

2007-07-21 17:33:22 · answer #2 · answered by steve_geo1 7 · 0⤊ 0⤋