Question

Question #15d0a

Answer 1

1.46 mol of lactose

Explanation:

`"n"="m"/"M"`, where n = number of moles, m = mass in grams, and M is molar mass.

In your question, m = 500 and M = `(12*12)+(1*22)+(16*11)=342`

So #"n"=500/342=1.4619883

= 1.462 mol