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Question 7

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A solution of 0.10 M aluminum nitrate has a pH close to 3.0.Which chemical equation explains the acidic pH of the solution?


A) Al3+(aq) + 3OH?(aq) ? Al(OH) 3(s) + 3H3O+(aq)
B) Al(H2O) 63+(aq) + H2O(l) ? Al(H2O) 5(OH) 2+(aq) + H3O+(aq)
C) Al(NO3) 3(s) + 3H2O(l) ? Al(OH) 3(s) + 3HNO3(s)
D) HNO3(aq) + H2O(l) ? NO3?(aq) + H3O+(aq)
E) NO3?(aq) + H2O(l) ? H2O + HNO3(aq)

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