How many molecules are in 30 liters of methane (ch4) at stp? 4.033 × 1024 4.033 × 1023 8.06 × 1024 8.06 × 1023

Number of moles:

1.0 mole CH4 22.4 L
moles 30 L

moles CH4 = 30 * 1 / 22.4 = 1.339 moles

Therefore:

1.0 mole CH4 6.02x10²³ molecules
1.339 moles molecules CH4

molecules CH4 = ( 1.339 ) * ( 6.02x10²³ ) / 1.0

=> 8.6x10²³ molecules CH4

Ithink 2 is the correct