Question

How many moles of methane(CH4)
are in 7.31x1025 molecules?
[? ]x10!?)
In scientific notation!!!

Answer 1

Answer:

121.428 mol = 1.214 * 10^2 mol

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