Calcium carbide (CaC₂)reacts with water to produce acetylene (C₂H₂)as shown in the unbalanced reaction below: CaC₂ (s)+ H₂O (g)→ Ca(OH)₂ (s)+ C₂H₂ (g) How many grams of H₂O are required to completely react with 82.4 g of CaC₂.

Question

Quizplus · Accepted Answer

To balance the equation, we need 2 moles of H2O for every mole of CaC2. The molar mass of CaC2 is 64 g/mol, so 82.4 g of CaC2 is 1.29 moles. Therefore, we need 2.58 moles of H2O, which is 46.3 g.

Calcium Carbide (CaC2)reacts with Water to Produce Acetylene (C2H2)as Shown

Calcium Carbide (CaC₂)reacts with Water to Produce Acetylene (C₂H₂)as Shown