SHORTANSWER

Mole Concept
By Sakshi Goel | 22 May'20 | 567 Views

Short Answer

Problem:

What volume of oxygen gas (O2) measured at 0°C and 1 atm, is needed to burn completely 1 L of propane gas (C3H8) measured under the same conditions?


Solution:

C subscript 3 H subscript 8 and 5 O subscript 2 yields 3 C O subscript 2 and 4 H subscript 2 O

For 1 mol propane, 5 mol O2 gas is needed.
22.4 L propane = 5 × 22.4 L of O
2 gas needed
So, 1 L propane = 5 L of O2 gas is required


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