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I am quite confused with this problem. Can you please help me with this question? Thank you. 

Which of the following will raise the pH of a weak acid HA in aqueous solution?
1. addition of HNO3
II. addition of NaCI
III. addition ofA" with no change in volume
IV. titrating with KOH
A) I and II
O B)I and IV
C) Il and III
D) II and IV
E) III and IV
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Transcribed Image Text

Which of the following will raise the pH of a weak acid HA in aqueous solution? 1. addition of HNO3 II. addition of NaCI III. addition ofA" with no change in volume IV. titrating with KOH A) I and II O B)I and IV C) Il and III D) II and IV E) III and IV