Chemistry, 01.08.2019 10:30 beetle1234
At 65°c, the ion-product constant of water, kw, is 1.20 ´ 10-13. the ph of pure water at 65°c is:
Answers: 2
![kw = [OH^{-1}][H^{+}]](/tpl/images/0157/8922/7a88f.png)
![kw = [H^{+}][H^{+}]\\\\kw = [H^{+}]^2\\\\1.2\times 10^{-13} = [H^{+}]^2\\\\\sqrt{(1.2\times 10^{-13} )} = [H^{+}]\\\\3.46 \times 10^{-7} = [H ^{+}]\\\\](/tpl/images/0157/8922/b53fc.png)
![pH = -log[H^{+}]\\\\pH = -log [3.46\times 10^{-7}]\\\\pH = 6.46](/tpl/images/0157/8922/5092b.png)
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At 65°c, the ion-product constant of water, kw, is 1.20 ´ 10-13. the ph of pure water at 65°c is:...
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