How many grams are in 17.83 moles of carbon dioxide?

2 Answers
Apr 30, 2016

Answer:

#"17.83 moles CO"_2# have a mass of #"784.7 g"#.

Explanation:

In order to determine the mass of a given numbers of moles of an element or compound, multiply the given moles by its molar mass.

Molar Mass of #"CO"_2"#

#(1xx12.011 "g/mol")+(2xx15.999"g/mol")="44.009 g/mol CO"_2"#

Multiply the given moles of #"CO"_2"# times its molar mass.

#17.83cancel"mol CO"_2xx(44.009"g CO"_2)/(1cancel"mol CO"_2)="784.7 g CO"_2"#

May 1, 2016

Number of moles = mass of substance #-:# molar mass

17.83 moles has been provided for you.

The formula of carbon dioxide is: #CO_2#.

The molar mass of carbon and oxygen is:
C = 12.0 g/mol
O = 16.0 g/mol
Therefore the molar mass of #CO_2# is:
[#1 xx 12.0 + 2 xx 16.0#] = 44.0 g/mol.

The mass of #CO_2# is:
#44.0 xx 17.83# = 784.5 grams
Note: This answer is rounded to nearest one decimal place.

Overall, there are 784.5 grams in 17.83 moles of #CO_2#.