Question

Approximately how many atoms make up 2.3 moles of gallium

A) 1.6x10^21
B) 3.8x10^22
C) 2.3x10^23
D) 1.4x10^24

Answer 1

C is the correct answer

Answer 2

Answer:
D. 1.4 * 10^24

Step-by-step explanation:
We are given that:
number of moles = 2.3
One mole of any element contains Avogadro's number of atoms. So to get the total number of atoms, we will just multiply the number of moles by Avogadro's number as follows:
number of atoms = 2.3 * 6.022 * 10^23 = 1.38506 * 10^24 atoms
which is approximately equal to 1.4 * 10^24 atoms

Hope this helps :)