Baking powder is made up of sodium hydrogen carbonate and calcium hydrogen phosphate. When baking powder is wet, these components react to produce carbon dioxide. The equation for this reaction is given below.NaHCO₃(aq) + CaHPO₄(aq) $\rarr$NaCaPO₄(aq) + CO₂(g) + H₂O(l) Assuming all of the carbon dioxide was released as a gas, how many liters of CO₂(g) would be formed at room temperature from 4.00 g of NaHCO₃ and excess CaHPO₄

Question

Quizplus · Accepted Answer

First, we need to determine the moles of NaHCO₃: molar mass of NaHCO₃ = 84 g/mol moles of NaHCO₃ = 4.00 g / 84 g/mol = 0.0476 mol Since the reaction produces the same number of moles of carbon dioxide as the number of moles of NaHCO₃, we can use the ideal gas law to find the volume of carbon dioxide produced at room temperature (25°C or 298K) and 1 atm: V = nRT/P V = (0.0476 mol)(0.0821 L*atm/mol*K)(298 K)/(1 atm) V = 1.16 L Therefore, the answer is approximately 1.16 liters, which is choice A.

Baking Powder Is Made Up of Sodium Hydrogen Carbonate and Calcium