Question

Calculate the mole and number of molecules in

one litre of a gas at STP.
Pls answer properly ​

Answer 1

Answer: Oxygen as a gas

Explanation:

• 22400 ml. of oxygen at 273 K temperature and 3-atm pressure = 22400 x3/1= 67200 ml at STP.
• So 224 ml of oxygen at 273 K and 3-atm = 224 x3= 672 ml at STP
• The number of Oxygen molecules present in 22400 ml of gas at STP=N

(where N= Avagadro Number)

• Therefore 224 ml of oxygen at 273K and 3-atm pressure will contain =Nx672/22400 x N molecules.

=3/100 x 6.022 x 10^23

=18.066 x 10^21 Molecules =1.8066x10^22

molecules

Answer 2

Answer:

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