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Chemistry Sample Solution: pH of Titrated Solution

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Exactly 100 mL of 0.20 M nitrous acid (HNO2) are titrated with a 0.20 M NaOH solution. Calculate the pH for the following.

(a) the initial solution
2.02 is correct
(b) the point at which 80 mL of the base has been added
2.44 is incorrect and differs from the correct answer by 10% to 100%.
(c) the equivalence point
?
(d) the point at which 105 mL of the base has been added
?

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Solution Preview

Exactly 100 mL of 0.20 M nitrous acid (HNO2) are titrated with a 0.20 M NaOH solution. Calculate the pH for the following.

(a) the initial solution
2.02 is correct
(b) the point at which 80 mL of the base has been added
2.44 is incorrect ...

Solution Summary

The pH of titrated solutions are determined.

$2.19