Baking soda (NaHCO₃,84.0 g/mol)can react with acids such as lactic acid (HC₃H₅O₃,90.1 g/mol)to generate the carbon dioxide gas needed to make baked goods rise.If sufficient lactic acid is present to completely react with 20.4 g NaHCO₃,how many moles of CO₂ (44.01 g/mol)are generated? HC₃H₅O₃(aq)+ NaHCO₃(s)$\to$ H₂O + CO₂(g)+ NaC₃H₅O₃(aq)

Question

Quizplus · Accepted Answer

The balanced chemical equation shows that 1 mol of NaHCO₃ produces 1 mol of CO₂ gas. First, we need to calculate the number of moles of NaHCO₃ that react with the given amount of lactic acid: 20.4 g NaHCO₃ x (1 mol / 84.0 g) = 0.243 mol NaHCO₃ Since the reaction is stoichiometric (1:1) between NaHCO₃ and CO₂, the number of moles of CO₂ generated is also 0.243 mol. Therefore, the best choice is B) 0.243 mol.

Baking Soda (NaHCO3,84 →\to→ H2O + CO2(g)+ NaC3H5O3(aq) A)0

Baking Soda (NaHCO₃,84 $\to$ H₂O + CO₂(g)+ NaC₃H₅O₃(aq)
A)0