Question

How many molecules are in 2.10 mol co2 ??

Answer 1

Answer:

There are $1.26\times 10^{24}$ molecules in 2.10 moles of $CO_{2}$

Explanation:

1 mol of a compound contains avogadro number of molecules or $6.023\times 10^{23}$ number of molecules.

So 1 mol of $CO_{2}$ contains $6.023\times 10^{23}$ molecules of $CO_{2}$

Hence 2.10 moles of $CO_{2}$ contain $(2.10\times 6.023\times 10^{23})$ molecules of $CO_{2}$ or $1.26\times 10^{24}$ molecules of $CO_{2}$

Answer 2

4.5x10^22.
How many molecules are in 2.10 mol CO2? 1.26x10^24 molecules.
What is the molar mass of AuCl3?