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

Titration of Na₂CO₃ with HCl. You may want to record your answers in the Data Collection section of your lab manual for use during the lab. (pK_a1(H₂CO₃) = 6.352, pK_a2(H₂CO₃) = 10.329).

(a) What are the first and second equivalence volumes (V_eq1 and V_eq2) when 20.00 mL of 0.10 M Na₂CO₃ is titrated with 0.20 M HCl?

V_eq1 = ? mL
V_eq2 = ? 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 0.20 M HCl added to 20.00 mL of 0.10 M Na₂CO₃.

mL 0.20 M HCl	pH
0.00
5.00
10.00
15.00
20.00
22.00

Expert Solution

queen_honey_blossom answered 2 years ago

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