At stp, a 12.0 liter sample of ch4(g) has the same total number of molecules as

There are four choices to choose from in regards with this problem and fortunately I know the answer to the said question:

Listed below are the choices:

a.) 6.0 L of H2(g) at STP
b.) 12.0 L of CO2(g) at STP
c.) 18.0 L of HCI(g) at STP
d.) 24.0 L of O2(g) at STP

The correct answer is b. 12.0 L of CO2 (g) at STP

Note:

STP or (Standard Temperature and Pressure) - most commonly used when performing calculations on gases (e.g. gas density)

A

Explanation:

Two atoms of the same element can be different if their electrons are in different states. If one copper atom has an electron in an excited state and another copper atom has all of its electrons in the ground state, then the two atoms are different.