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Grade: 10
        Calculate the volume of air containing 21% oxygen by volume at STP, required in order to convert 294 cm3 of sulphur dioxide to sulphur trioxide under the same conditions.
6 years ago

Answers : (1)

Apptica Corporations
37 Points
							I considered oxygen as O2 not O.

SO2+ half O2 ------> SO3

22.4 l requires 11.2 l oxygen gas

294 cc will require 147 cc of O2 gas

let air volume= x cm cube

0.21*x=147

x=700 cm cube

If the answer is not what you want then consider O2 as O atoms and solve
						
6 years ago
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