A. 2.06 B. 5.48 C. 8.52 D. 9.26 Which process best accounts for the numerical va

Question

A. 2.06

B. 5.48

C. 8.52

D. 9.26

Which process best accounts for the numerical value of the equivalence-point pH after the titration of formic acid, HCOOH with NaOH?

A. HCOO- (aq) + H2O (l) <--------> HCOOH (aq) + OH- (aq)

B. HCOOH(aq) + H2O(l) <------->   -COOH (aq) + H3O+ (aq)

C. HCOOH (aq) + H3O+ (aq) <--------> HCOOH2+ (aq) + H2O(l)

D. HCOOH(aq) + H2O(l) <-------> HCOOH2+ (aq) + OH- (aq)

A. 2.06

B. 5.48

C. 8.52

D. 9.26

Which process best accounts for the numerical value of the equivalence-point pH after the titration of formic acid, HCOOH with NaOH?

1. Answer

   A. HCOO- (aq) + H2O (l) <--------> HCOOH (aq) + OH- (aq)

   B. HCOOH(aq) + H2O(l) <------->   -COOH (aq) + H3O+ (aq)

   C. HCOOH (aq) + H3O+ (aq) <--------> HCOOH2+ (aq) + H2O(l)

   D. HCOOH(aq) + H2O(l) <-------> HCOOH2+ (aq) + OH- (aq)

Explanation / Answer

a) option C : 8.52

b) option A: HCOOH(aq) + H2O(l) <-------> HCOOH2+ (aq) + OH- (aq)

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