What volume (to the nearest 0.1 mL) of 5.20-M NaOH must be added to 0.400 L of 0.300-M HNO2 to prepare a pH - 3.90 buffer? 717 X mL

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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What volume (to the nearest 0.1 mL) of 5.20-M NAOH must be added to 0.400 L of 0.300-M HNO2 to prepare a pH = 3.90 buffer?
|x mL
717
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What volume (to the nearest 0.1 mL) of 4.70-M HCI must be added to 0.250 L of 0.200-M K2HPO, to prepare a pH = 6.60 buffer?
10.04
x mL
Transcribed Image Text:DETAILS PREVIOUS ANSWERS What volume (to the nearest 0.1 mL) of 5.20-M NAOH must be added to 0.400 L of 0.300-M HNO2 to prepare a pH = 3.90 buffer? |x mL 717 DETAILS PREVIOUS ANSWERS What volume (to the nearest 0.1 mL) of 4.70-M HCI must be added to 0.250 L of 0.200-M K2HPO, to prepare a pH = 6.60 buffer? 10.04 x mL
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