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Topic: pH question ive been having trouble with  (Read 1136 times)

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Offline Desparate Bugga

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pH question ive been having trouble with
« on: April 11, 2019, 04:46:10 AM »
Calculate the final pH of the resultant solution if: 5.0g of sodium hydroxide were completely dissolved in 120mL of distilled water and this solution was added to 200mL of 0.2mol.L^-1 nitric acid.

I've been trying to learn how to do this for ages but cannot, i cant find a video that seems relevant to the topic at all and has no examples similair to this question nor can i figure it out myself.

Offline Borek

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Re: pH question ive been having trouble with
« Reply #1 on: April 11, 2019, 09:59:46 AM »
What is the limiting reagent?
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Offline Desparate Bugga

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Re: pH question ive been having trouble with
« Reply #2 on: April 11, 2019, 11:11:06 AM »
is that relevant at all? i didnt think that itd be necessary?

Offline AWK

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Re: pH question ive been having trouble with
« Reply #3 on: April 11, 2019, 12:41:27 PM »
Yes, the problem of the limiting reagent is very important in this example. A strong base reacts with a strong acid, and the excess of base (or acid) determines the pH of the resulting solution.
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