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16 Nov 2019

A 20. mL sample of a 0.10 M weak acid (KA= 1.3×10−4 ) is titrated with 0.20 M NaOH. If 10.0 mL of NaOH are needed to reach the equivalence point, what is the pH after addition of 5.0 mL of NaOH (halfway to the equivalence point)?

a. 10.0

b. 8.71

c. 5.35

d. 4.57

e. 3.89

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Jamar Ferry
Jamar FerryLv2
29 Jan 2019

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Related questions

4.) Consider the titration of 100.0 mL of 0.016 M HOCl (Ka=3.5×10−8) with 0.0400 M NaOH.

Part A

How many milliliters of 0.0400 M NaOH are required to reach the equivalence point?

Part B

Calculate the pH after the addition of 10.0 mL of 0.0400 M NaOH.

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Calculate the pH halfway to the equivalence point .

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