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Titration of Na2CO3 with HCl. You may want to record your answers in the Data Collection...

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Chemistry

Titration of Na2CO3 with HCl. You may wantto record your answers in the Data Collection section of your labmanual for use during the lab.(pKa1(H2CO3) = 6.352,pKa2(H2CO3) =10.329).

(a) What are the first and second equivalence volumes(Veq1 and Veq2) when 20.00 mL of 0.10M Na2CO3 is titrated with 0.20M HCl?

Veq1 = ? mL
Veq2 = ? mL

(b) What do you expect the pH to be at the following points

The first midpoint of the titration.
pH =  

The first equivalence point of the titration.
pH =  

The second midpoint of the titration.
pH =


(c) Calculate the pH at each of the following volumes of 0.20M HCl added to 20.00 mL of 0.10 MNa2CO3.

mL 0.20 M HClpH
0.00
5.00
10.00
15.00
20.00
22.00

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