Question

Question 6(Multiple Choice Worth 2 points)

If you were asked to convert 4.2 × 1022 atoms of aluminum to moles, which of the following should you use for the conversion?

fraction six point zero two two times ten to twenty third power atoms Al over thirteen mol Al
fraction one mol Al over twenty six point nine eight one atoms Al
fraction one mol Al over thirteen point zero atoms Al
fraction one mol Al over six point zero two two times ten to twenty third power atoms Al

Answer 1

4.2 × 10²² atoms Al × (1 mol Al / 6.022 × 10²³) = moles Al

Last one: fraction 1 mole Al over 6.022 × 10²³ atoms Al