In the given equation: HCOOH (aq) + H2O (l) ↔ H3O+ (aq) + HCOO– (aq), the initial concentration of formic acid is 0.58 M (Ka HCOOH = 1.78×10−4). Following the ICE table, which expression shows the correct representation of the given reaction? a HCOOH = 0.58 – x; H3O+ = 0.58 + x; NO2- = 0.58 + x b HCOOH = 0.58 + x; H3O+ = 0.58 – x; NO2- = 0.58 – x c HCOOH = 0.58 + x; H3O+ = – x; NO2- = – x d HCOOH = 0.58 – x; H3O+ = +x; NO2- = +x
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Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.
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In the given equation: HCOOH (aq) + H2O (l) ↔ H3O+ (aq) + HCOO– (aq), the initial concentration of formic acid is 0.58 M (Ka HCOOH = 1.78×10−4). Following the ICE table, which expression shows the correct representation of the given reaction?
| a |
HCOOH = 0.58 – x; H3O+ = 0.58 + x; NO2- = 0.58 + x |
|
| b |
HCOOH = 0.58 + x; H3O+ = 0.58 – x; NO2- = 0.58 – x |
|
| c |
HCOOH = 0.58 + x; H3O+ = – x; NO2- = – x |
|
| d |
HCOOH = 0.58 – x; H3O+ = +x; NO2- = +x |
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