Problem: Acetylene gas, C2H2(g), can be prepared by the reaction of calcium carbide with water: CaC2(s) + 2 H2O(l) → Ca(OH)2(s) + C2H2(g)Calculate the volume of C2H2 that is collected over water at 23 oC by reaction of 1.53 g of CaC2 if the total pressure of the gas is 753 torr. (The vapor pressure of water is 21.07 torr.)

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FREE Expert Solution
  • To calculate for the V of C2H, we have to find the moles of C2H2 using the balanced reaction with mass of CaCwhich is at 1.53 g
  • Volume of C2Hcan be solved using the ideal gas equation and the conditions for temperature and pressure when we already have the moles of C2H2
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Problem Details

Acetylene gas, C2H2(g), can be prepared by the reaction of calcium carbide with water:

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

Calculate the volume of C2H2 that is collected over water at 23 oC by reaction of 1.53 g of CaC2 if the total pressure of the gas is 753 torr. (The vapor pressure of water is 21.07 torr.)