How many mol of #CO_2# are in 12.6 g of #CO_2#?

1 Answer
Apr 20, 2016

Answer:

#mols=0.2863approx0.29#

Explanation:

use the formula #mols=(mass)/(mr)# mr is the relative atomic mass.
so mols are unknown
mr of CO2: #12+16(2)#
#44#
mass is #12.6g#
now put them in the formula given
#mols=12.6/44#
#mols=0.2863approx0.29#