Question

Convert the following into moles.
1) 89.6 litres of H at STP
ii) 12.046 x 10 molecules of O2
​

Answer 1

1) No. of moles of a gas at NTP= Volume in litres/22.4

So, 89.6 litres of gas= ( 89.6/22.4) moles of gas = 4 moles of gas

No. of molecules= Moles X Avogadro's no = 4 x 6.02 X ( 10^23)

2) in the attachment