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E. Diluting an Acid or Base
when you to an , you change the add water acid or base [H3O+(aq)] or the [OH(aq)] diluting an acid will the until a pH of is reached decrease [H3O+(aq)] 7.0 diluting a base will the until a pH of is reached decrease [OH-(aq)] 7.0
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Formulas to remember: pH = - log [H3O+] pOH = - log [OH-]
[H3O+] = 10-pH [OH-] = 10-pOH C = n/v CiVi = CfVf
![Formulas to remember: pH = - log [H3O+] pOH = - log [OH-]](http://slideplayer.com/slide/14983402/91/images/3/Formulas+to+remember%3A+pH+%3D+-+log+%5BH3O%2B%5D+pOH+%3D+-+log+%5BOH-%5D.jpg "[H3O+] = 10-pH. [OH-] = 10-pOH. C = n/v. CiVi = CfVf.")
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Remember: CiVi = CfVf A concentrated solution is made by dissolving 5g of HCl into 30 L of water. You then take 10 mL of this solution and dilute it to a volume of 50 L. What is the pH of the diluted solution?
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Practice Questions Ch. 6 Study Sheet Ch. 6 test tomorrow
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