How many molecules are in 2.10 mol CO2?
A. 2.53 x 10^24 molecules
B. 3.79 x 10^24 molecules
C. 3.49 x 10^24 molecules
D. 1.26 x 10^24 molecules***
I think it is D, but can someone check my work?
Amount of mols x Avogadro's number (2.10 x 6.02 x 10^23)
1.26 x 10^24
(P.S This is all scientific notation)
Thank you!
Go to the head of your class. It is D.
A. 2.53 x 10^24 molecules
Your work is correct! The number of molecules in 2.10 mol of CO2 is indeed 1.26 x 10^24 molecules. Therefore, the correct answer is D.
Your answer of D is correct!
To find the number of molecules in 2.10 mol of CO2, you need to multiply the amount of moles by Avogadro's number.
Avogadro's number is approximately 6.02 x 10^23 molecules/mol.
So, to calculate the number of molecules, you can simply multiply 2.10 mol by Avogadro's number:
2.10 mol * 6.02 x 10^23 molecules/mol = 1.26 x 10^24 molecules
Therefore, the correct answer is D: 1.26 x 10^24 molecules. Well done!