Question

How many molecules are in 8.50 moles of H2O?

Answer 1

`5.12 × 10^24\ "molecules"`

Explanation:

`"1 mole" = 6.022 × 10^23\ "molecules"`

`8.50 cancel"moles" × (6.022 × 10^23\ "molecules")/(1 cancel"mole") = 5.12 xx 10^24\ "molecules"`