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If a solution of sodium dihydrogen phosphate (NaH2PO4) is dissolved in water at pH = 5 and 25°C, all the dihydrogen phosphate ions will remain in their acid form, since pk, for the reaction Na* + H2PO4- + H20 > Na* + H30* + HPO,2- is 7.21 at 25°C. Under these circumstances, what value of i should be used for NaH2PO, in the equation TV = inRT? Select one: O 2.5 O 1 O 2 O 1.5 O 7.21

If a solution of sodium dihydrogen phosphate (NaH2PO4) is dissolved in water at pH = 5 and 25°C, all the dihydrogen phosphate ions will remain in their acid form, since pk, for the reaction Na* + H2PO4- + H20 > Na* + H30* + HPO,2- is 7.21 at 25°C. Under these circumstances, what value of i should be used for NaH2PO, in the equation TV = inRT? Select one: O 2.5 O 1 O 2 O 1.5 O 7.21

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter16: Solubility And Precipitation Equilibria
Section: Chapter Questions
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If a solution of sodium dihydrogen phosphate (NaH,PO4) is dissolved in water at pH = 5 and 25°C, all the dihydrogen phosphate ions will remain in their acid form, since pk, for the reaction Na* + H;PO4- + H20 -- > Na* + H30* + HPO,2- is 7.21 at 25°C. Under these circumstances, what value of i should be used for NaH,PO, in the equation TV = inRT? Select one: O 2.5 O 1 O 2 O 1.5 O 7.21
Transcribed Image Text:If a solution of sodium dihydrogen phosphate (NaH,PO4) is dissolved in water at pH = 5 and 25°C, all the dihydrogen phosphate ions will remain in their acid form, since pk, for the reaction Na* + H;PO4- + H20 -- > Na* + H30* + HPO,2- is 7.21 at 25°C. Under these circumstances, what value of i should be used for NaH,PO, in the equation TV = inRT? Select one: O 2.5 O 1 O 2 O 1.5 O 7.21
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