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  3. part a a 50.0-ml sample of 0.200 m sodium hydroxid

Part A A 50.0-mL sample of 0.200 M sodium hydroxide is titrated with 0.200 M nitric acid. Calculate...

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Chemistry

Part A

A 50.0-mL sample of 0.200 M sodium hydroxide istitrated with 0.200 M nitric acid.

Calculate the pH of the solution, after you add a total of 51.9mL 0.200 M HNO3.

Express your answer using two decimal places.

Part B

A 39.0 mLsample of 0.146 M HNO2is titrated with 0.300 M KOH.(Kafor HNO2is 4.57×10−4.)

Determine the pH at theequivalence point for the titration of HNO2and KOH

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Answer & Explanation Solved by verified expert
3.7 Ratings (418 Votes)
A Given MHNO3 02 M VHNO3 519 mL MNaOH 02 M VNaOH 50 mL molHNO3 MHNO3 VHNO3 molHNO3 02 M 519 mL 1038 mmol molNaOH MNaOH VNaOH molNaOH 02 M 50 mL 10 mmol We have molHNO3 1038 mmol molNaOH 10 mmol 10 mmol of both will react remaining mol of HNO3 038    See Answer
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