Question

What mass of acetylene, C₂H₂, will be produced from the reaction of 90. g of calcium carbide, CaC₂, with water in the following reaction?

CaC₂(s) + 2H₂2O(l) --> C₂H₂(s) + Ca(OH)₂(aq)

Answer 1

The mass of acetylene produced from the reaction of calcium carbide with water can be calculated using stoichiometry, starting with the balanced chemical equation, calculating moles of reactants and products, and converting to mass.

Step-by-step explanation:

The question involves the calculation of the mass of acetylene (C2H2) produced from the reaction of calcium carbide (CaC2) with water. To solve this, first, the balanced chemical equation is used:

CaC2 (s) + 2 H2O(l) → C2H2(g) + Ca(OH)2 (s)

Next, the molar mass of CaC2 is calculated to find the number of moles that react. Using the stoichiometry of the reaction, the number of moles of C2H2 produced is determined. Finally, the molar mass of C2H2 is used to convert the moles of C2H2 to grams to find the mass of acetylene produced.