Question

g) A] A flask contains 8 g of methane gas (C = 12, H= 1). Calculate:
[3]
i. Volume occupied by 8 g of methane at STP. 11
ii. Number of moles of methane present in the flask.
ii. Number of molecules of methane present in the flask.
B] Acetylene burns in air forming carbon dioxide and water vapour. Calculate the
volume of air required to completely burn 75cm3 of acetylene. (Assume air
contain 20% oxygen]
[2]
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Answer 1

Answer:

Refer to the attachment