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May 29, 2015

Homework Help: chemistry

Posted by vivian on Thursday, May 12, 2011 at 9:54pm.

What is the pH of 8.94 10−6 M HCN(aq), ignoring the effect of the autoprotolysis of water?
1. 7.17923 (basic; thus not reasonable)
2. 6.03594
3. 7.30027 (basic; thus not reasonable)
4. 5.50032
5. 7.38101 (basic; thus not reasonable)
6. 5.18207
7. None of these

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