PbO + H2SO4

2007-04-26 6:40 pm

Why the statement is incorrect?
" Lead(II) oxide dissolves in dilute sulphuric acid to form lead(II) sulphate and water."

回答 (2)

2007-04-26 8:54 pm

✔ 最佳答案

呢個算係neutralization
PbO(s)+H2SO4(aq)>>PbSO4(s)+H2O(l)

錯係錯在「dissolve」呢個字
由於PbO同PbSO4都係(s)
又何來dissolve呢?

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2007-04-26 6:47 pm

It is because lead(II) sulphate is insoluble salt. For a insoluble salt , we must use precipitation. Otherwise , lead(II) suphate cannot be formed.

參考: myself

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