Question

How many molecules are in 2.50 moles of methane?

Answer 1

Answer:

There are 1.51 x 1024 molecules of carbon dioxide in 2.50 moles of carbon dioxide. To calculate this you must multiply Avogadro's number, 6.022 x 102...

Answer 2

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Firstly, we need to know that Avogadro’s number (6.023 × 10^23) is the number of atoms, molecules or groups of ions contained within one mole of a substance.

So, from this we know there are 6.023 × 10^23 molecules in one mole of CH4. To find how many molecules are present in 5.8 moles of CH4, all we have to do it multiply Avogadro’s number by 5.8!

(6.023 × 10^23) × 5.8 = 3.5 × 10^24

Therefore, there are 3.5 x 10^24 molecules in 5.8 moles of CH4.