Question

5

How many moles are in 2.70 X 1024 particles?
A 4.48 moles
B 1.60 x 1025 moles
C
1.60 x 1048 moles
D 0.448 moles

Answer 1

A. 4.48 moles

To convert from the number of particles to the number of moles, we need to use Avogadro's number, which is the number of particles in one mole of a substance. Avogadro's number is approximately 6.022 x 10^23 particles/mole. So, to find the number of moles, we divide the number of particles by Avogadro's number:

2.70 x 1024 particles / (6.022 x 10^23 particles/mole) = 4.48 moles

Therefore, the answer is A. 4.48 moles.