Question

What is the number of molecules in 20.6 grams of CCl4

Answer 1

8.06 x 10^22

Step-by-step explanation:

1 mole of CCl4 = 12.011 + 4(35.453) = 153.823 g

1 mole of CCl4 = 153.823 g = 6.022 × 10^23 molecules

so the number of molecules in 20.6 g equals

(20.6 x 6.022 × 10^23)/153.823

= 8.0646717 x 10^22

= 8.06 x 10^22