acetylene gas is produced from calcium carbide and water.If 32 g of calcium carbide are consumed, how many g ?

Question

grams of water are needed?
thank you everybody.....

Answer 1

The balanced reaction is:
CaC2 + 2H2O ---> C2H2 + Ca(OH)2

The molar mass of CaC2 is 64 g/mol so you are starting with 0.5 moles of calcium carbide. Since water reactions with CaC2 is a 1:2 ratio, you will need twice as much water, or 1.0 moles of water = 18 grams of water.

Answer 2

while i wont do your homework for you ill tell you what you need to know.
First set up and balance the reaction of calcium carbide + water --> acetylene.
determine the number of moles of calcium carbide you have by dividing it by the molar mass.
then figure out how many moles of water you need by multiplying by the coefficient in front of the water and dividing by the coefficient in front of the calcium carbide.
multiply that by the molar mass of water and bob's your uncle thats your answer.

so set up and balance the reaction, find out the number of moles of calcium carbide, relate the number of calcium carbide moles to the number of water moles, then find the mass

Answer 3

you need the balanced chemical equation to solve that