1.

The volume of acetylene gas produced at25^(@)Cand 0.950 atm. pressure from calcium carbide by the reaction 128 g of calcium carbide with 45 g of water is

Answer»

3.22 litre
32.2 litre
16.1 litre
None of these

SOLUTION :`CaC_2+2H_2O rarr Ca(OH)_2+C_2H_2`
The LIMITING REAGENT is water
For 36 g of `H_2O` NUMBER of moles of `C_2H_2=1`
1 of `H_2O` number of moles of `C_2H_2= 1/(36)`
45g of `H_2O` number of moles of `C_2H_2`
`=1/36 xx 45 = 1.25`
Use PV=nRT


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