Question

The volume of oxygen at STP required for the complete combustion of 260g of acytelen is

A) 560 L B) 420 L

C) 280 L D) 140 L

Answer 1

Answer:

a is correct

Explanation:

formula of acetylene is c2h2 and it's molecular mass is 26 ....

then no. of mole is 10.....

and for 10 mole c2h2.... 25 mole O2 is needed

hence volume at stp is 22.4X25 is 560