Question #06fc8

1 Answer
Dec 8, 2016

Answer:

Divide the number of grams by the grams per mole of the element or compound required.

Explanation:

# (g/1)/( g/m)# =# moles

Simply this compound fraction by multiplying both
top fraction # g/1# and the bottom fraction g/mol by
the faction moles/grams. This gives

# {(g/1) xx (m/g)}/ {(g/m) x (m/g)}#

The numerator simplifes as moles ( the grams divide out)

The denominator simplifies as 1 ( the grams and moles divide out)

This leaves moles as the answer.