Answer to Question #122134 in Physical Chemistry for Kyson

Question

Three 1.0 liter flasks are filled with H2, O2, and Ne, respectively, at STP.

Which of the following statements is true?

Each flask has the same number of gas molecules.
The density of each gas is the same
There are twice as many oxygen and hydrogen molecules as neon atoms
None of the options are true

Answer 1

We know that at same temperature equal volume of gases have equal moles of gases

So

Each flask has the same number of gaseous molecules.

So option (A) is correct