Question

How many moles of methane(CH4)

are in 7.31x1025 molecules?
[? ]x10!?)
In scientific notation!!!

Answer 1

121.428 mol = 1.214 * 10^2 mol

Step-by-step explanation:

1 mol = 6.02 * 10^23 molecules

x = 7.31 * 10^25 molecules

7.31*10^25 = 6.02*10^23 x

Divide by 6.02*10^23

7.31 * 10^25 / 6.02*10^23 = x

x = 121.428 mol

The units are mol