Answer:
9.52 x 10²³molecules
Explanation:
Given parameters:
Mass of carbon dioxide = 69.59g
Unknown:
Number of molecules = ?
Solution:
To solve this problem, we must understand:
1 mole of a substance contains 6.02 x 10²³ molecules
Now, first find the number of moles of carbon dioxide;
Number of moles = [tex]\frac{mass}{molar mass}[/tex]
Molar mass of carbon dioxide = 12 + 2(32) = 44g/mol
Number of moles = [tex]\frac{69.59}{44}[/tex] = 1.58moles
So;
1 mole of a substance contains 6.02 x 10²³ molecules
1.58moles of carbon dioxide will contain 1.58 x 6.02 x 10²³
= 9.52 x 10²³molecules
