Question

150cc of contains molecules, how many molecules of B will be present in 75cc of B
(tom board exam pls explain fast)​

Answer 1

Answer:

according to Avogadro law

equal volumes of gases at S.T.P contain equal no of molecules

let's say 150 cc of a gas contains x molecules

then q cc of a gas would contain x/150 molecules

then 75 cc of a gas would contain x*75/150

so. B contains x/2 molecules