Using the background theory provided, choose the set of equations that best describe the reaction between the sodium carbonate and hydrochloric acid in experiment 1.Question 2Select one:a. (1) Na2CO3 (s) → 2Na+ (aq) + CO32- (aq) (2) HCl (g) → H+ (aq) + Cl- (aq) (3) 2H+ (aq) + CO32- (aq) → H2CO3 (aq) (4) H2CO3 (aq) → CO2 (g) + H2O (l) b. (1) HCl (g) → H+ (aq) + Cl- (aq) (2) NaHCO3 (aq) → Na+ (aq) + HCO3- (aq) c. (1) HCl (g) → H+ (aq) + Cl- (aq) (2) NaOH (s) → Na+ + OH- (3) Na+ (aq) + OH- (aq) + H+ (aq) + Cl- (aq) → NaCl (aq) + H2O (aq) d. (1) Na2CO3 (s) → Na+ (aq) + CO3- (aq) (2) HCl (g) → H+ (aq) + Cl- (aq) (3) H+ (aq) + CO3- (aq) → HCO3- (aq)
Question
Using the background theory provided, choose the set of equations that best describe the reaction between the sodium carbonate and hydrochloric acid in experiment 1.Question 2Select one:a. (1) Na2CO3 (s) → 2Na+ (aq) + CO32- (aq) (2) HCl (g) → H+ (aq) + Cl- (aq) (3) 2H+ (aq) + CO32- (aq) → H2CO3 (aq) (4) H2CO3 (aq) → CO2 (g) + H2O (l) b. (1) HCl (g) → H+ (aq) + Cl- (aq) (2) NaHCO3 (aq) → Na+ (aq) + HCO3- (aq) c. (1) HCl (g) → H+ (aq) + Cl- (aq) (2) NaOH (s) → Na+ + OH- (3) Na+ (aq) + OH- (aq) + H+ (aq) + Cl- (aq) → NaCl (aq) + H2O (aq) d. (1) Na2CO3 (s) → Na+ (aq) + CO3- (aq) (2) HCl (g) → H+ (aq) + Cl- (aq) (3) H+ (aq) + CO3- (aq) → HCO3- (aq)
Solution
The correct set of equations that describe the reaction between sodium carbonate and hydrochloric acid is option a.
Here's why:
a. (1) Na2CO3 (s) → 2Na+ (aq) + CO32- (aq) This equation represents the dissociation of sodium carbonate in water.
(2) HCl (g) → H+ (aq) + Cl- (aq) This equation represents the dissociation of hydrochloric acid in water.
(3) 2H+ (aq) + CO32- (aq) → H2CO3 (aq) This equation represents the reaction between the hydrogen ions from the hydrochloric acid and the carbonate ions from the sodium carbonate to form carbonic acid.
(4) H2CO3 (aq) → CO2 (g) + H2O (l) This equation represents the decomposition of carbonic acid into carbon dioxide and water.
These four equations together describe the overall reaction between sodium carbonate and hydrochloric acid.
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