How Many Molecules Are In 30 Liters Of Methane (Ch4) At Stp?

How many molecules are in 30 liters of methane (CH4) at STP?

 

Good Day..

Problem:

How many molecules are in 30 liters of methane (CH4) at STP?

Note: Every 1 mole of gas will occupy a volume of 22.4 L at STP.

Every 22.4 Liters volume of gas will have 6.022 × 10^23 number of molecules At STP.

Given:

CH4 volume  = 30 Liters

CH4 molecules = ? unknown

conversion factor = 6.022 × 10^23 / 22.4 Liters

Solution:

Multiple the given volume of CH4 gas by the conversion factor and cancel the unit liter what remains is the number of molecules.

CH4 # of molecules    =   30 Liters × 6.022 × 10^23 / 22.4 Liters

                                     =   180.66 × 10^23 / 22.4

CH4 # of molecules  =   8.065 × 10^23

Answer:

The number of molecules of CH4 gas is 8.065 × 10^23

Hope it helps....=)