Question

In a bottle of soda, there is 0.24 mole of CO2. How many grams of CO2 are in the bottle?

Answer 1

"Very simple" - so make sure you learn this - this is the basis for chemistry!

ok - you know that there is a certain amout of a chemical (CO2) in a given volume. That amount is in moles.You need grams. This is a unit conversion problem; you need to convert the units from moles (0.30 moles CO2) to grams (__ grams CO2).

You need to know the molecular weight of CO2, which has 1 carbon atom and 2 oxygen atoms. A carbon atom's atomic weight is (off the periodic table):

C = 12.011 grams per mole (aka g/mol)

An oxygen atom's atomic weight: O = 15.999 grams per mole (g/mol)

Now, add the atomic weights together to get the molecular weight (remember 1 carbon and 2 oxygens):

1*(12.011 g/mol) + 2*(15.999 g/mol) = 44.009 g/mol (this is the conversion factor you need for your final calculation)

Now, convert from moles CO2 to grams CO2 by multiplying (ensure the units cancel correctly):

(0.30 mole CO2)*(44.009 g CO2/mol CO2) = 13.2027 g CO2 = 13 g CO2 (2 sig. figs.)

Step-by-step explanation:

Answer 2

10.56g

Step-by-step explanation:

The molar mass of CO2 is 12+2(16)=48. Multiplying this by the number of moles yields:

0.24*44=10.56 grams of CO2. Hope this helps!