6.4

Acidity
Basicity
The Conjugate Seesaw

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AnvitaaAnandkumar_1B
Posts: 56
Joined: Fri Aug 02, 2019 12:15 am

6.4

Postby AnvitaaAnandkumar_1B » Wed Dec 04, 2019 12:04 pm

How many hydronium ions are present at any moment in 100. mL of pure water at 25 C?
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Charisse Vu 1H
Posts: 101
Joined: Thu Jul 25, 2019 12:17 am

Re: 6.4

Postby Charisse Vu 1H » Wed Dec 04, 2019 12:11 pm

The pH of pure water is 7. The equation to find pH is pH=-log[H3O+]. Substituting 7 into the equation, you would find that the concentration of hydronium ions is 1*10^-7. Then, to find the number of ions present, you would then do the following:
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