Limestone (CaCO₃)emits CO₂gas when exposed to HCl as shown in the reaction below . What is the theoretical yield of CO₂if 9.45 g of limestone is completely dissolved in HCl? CaCO₃( s )+ 2HCl( aq )→ CaCl₂( aq )+ CO₂( g )+ H₂O( l )

Question

Quizplus · Accepted Answer

The molar mass of CaCO3 is 100.09 g/mol, and the molar mass of CO2 is 44.01 g/mol. From 9.45 g of CaCO3, the moles of CaCO3 are 9.45 g / 100.09 g/mol = 0.0944 mol. The reaction shows a 1:1 molar ratio between CaCO3 and CO2, so 0.0944 mol of CO2 is produced. The mass of CO2 is 0.0944 mol * 44.01 g/mol = 4.16 g.

Limestone (CaCO3)emits CO2gas When Exposed to HCl as Shown in the Reaction

Limestone (CaCO₃)emits CO₂gas When Exposed to HCl as Shown in the Reaction