HCC CHEM1305 Chapter 8 Discussion Latest 2021 January

CHEM1305 Introductory Chemistry

Chapter 8 Discussion

How Big is Avogadro's Number?

In this discussion, you will do a calculation using Avogadro's number, 6.02 × 1023, or 1 mole. Think of an everyday item and either do a google search to see what it's mass is or else measure it's mass yourself. Next, multiply that mass by Avogadro's number to determine how much 1 mole of that item would weigh. Report your result in both scientific notation and as an ordinary number.

For example, 1 m&m candy weighs about 0.88 g

0.88 g × 6.02 × 1023 = 5.3 × 1023 g = 530,000,000,000,000,000,000,000 g

 1 m&m = 0.88 g

1 mole m&m = 5.3 × 1023 g    or    530,000,000,000,000,000,000,000 g