Dilution, HW Problem #12.33

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104785906
Posts: 11
Joined: Wed Nov 16, 2016 3:04 am

Dilution, HW Problem #12.33

Postby 104785906 » Wed Jul 26, 2017 9:32 pm

Hi guys!

This is a pretty long problem, and I could use some walking through to clarify on how to solve.

We start with added solid Na2O to a 200 mL flask, which is filled with water resulting in 200 mL of NaOH solution. 5.00mL of this is transferred to another flask and diluted to 500 m. The pH of this diluted solution is 13.25.
What is the concentration of hydroxide ion in a) the diluted solution ? b) the original solution ? c) What mass of Na2O was added to the first flask.

What is the best way to organize/ go about solving this without getting confused or mixing up the calculations.

Wu Yuchen A1
Posts: 24
Joined: Thu Jun 29, 2017 3:00 am

Re: Dilution, HW Problem #12.33

Postby Wu Yuchen A1 » Thu Jul 27, 2017 11:16 am

To solve this question in organized way, you can just follow the secondary questions one by one. To make the question more difficult, you can just try to solve the last question without seeing the first two.


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