Question

How many molecules are in 7.90 moles of CH4?

\[1.31~x~10^{−23}~molecules\]

\[7.62~x~10^{22}~molecules\]

\[4.76~x~10^{24}~molecules\]

\[2.30~x~10^{25}~molecules\]

I got D

Answer 1

Alright now that it definitely says molecules instead of atoms i think i can help with this question correctly..

1 mole = 6.022x10^23 molecules so
7.90moles x 6.022x10^23molecules/mole = ?

Answer 2

oh It is C :)

Answer 3

I think if the question was asking for the number of atoms then it would be D.

Answer 4

because you would multiply your answer by 5

Answer 5

oh ok