Question

How many moles of methane(CH4) are in 7.31*10^25 molecules

Answer 1

(7.31 x 10^25) / (6.023 x 10^23) = 121.37 Moles

Answer 2

There are 121.37 moles of methane(CH₄) in 7.31*10²⁵ molecules

Step-by-step explanation:

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023 * 10²³ particles per mole. The Avogadro number applies to any substance.

Then a rule of three can be applied as follows: if 6,023*10²³ molecules are in 1 mole of CH₄, 7.31*10²⁵ molecules will be present in how many moles of the substance?

`moles=(7.31*10^(25)molecules*1mole )/(6.023*10^(23)molecules )`

moles=121.37

There are 121.37 moles of methane(CH₄) in 7.31*10²⁵ molecules