HNO2 + H2O yields NO2- + H3O+ conjugate acid/base pairs?
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What are the conjugate acid/base pair(s) in the acid base reaction above? (Select all that apply.) a. H3O+/H2O b. HNO2/NO2- c. H3O+/NO2- d HNO2/H2O
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Answer:
a. H3O+ /H2O b.HNO2 / NO2- when from any acid H+ ion is removed then conjugate base is formed when in any base H+ is added then conjugate acid is formed e.g. H3PO4 /H2PO4-1 H2PO4-1/HPO4-2 HPO4-2 / PO4-3 H2CO3/HCO3-1 HCO3-1/ CO3-2 H2SO4 /HSO4-1 HSO4-1 /SO-2 H-Cl / Cl-1
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Other answers
a. H3O+/H2O b. HNO2/NO2- becoz conjugate acid have more H than its conjugate base
prashant Soni
(c) is a real conjugate acid/base pair. (a) exists to the extent of 10^-14[ that is how we deduce pH as 7 for water]
Raman P
a. H3O+/H2O b. HNO2/NO2-
Rais
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