[McDonaldsCheese4]

A student investigating the composition of soft drinks, decarbonated a 375mL can of cola. She lost 2.5g of carbon dioxide. Calculate the volume occupied by this gas at 25°C ad 100kPa.

Any help is appreciated

[AWK]

Use The Ideal Gas Law

[McDonaldsCheese4]

I have here is my working.

n=m/M
  = 2.5/44.01


V= nRT/P

V=0.056805....x8.314x298.15/100
  = 1.41L

this seems completely off

[AWK]

It wasn't difficult, wasn't it ?.
Two significant digits will look better.

[McDonaldsCheese4]

yeah I already had this answer but how does 1.4L worth of CO₂ fit in a 375 ml can when there is just 2.5 grams of it. Doesn't seem right to me

[AWK]

2 significant digits in 2.5, 3 SD if 2.50

[INeedSerotonin]

How can CO2 occupy a greater volume than the can itself?

Is it the pressure that the can exerts upon the gas that makes it fit inside?

[AWK]

This result is quite good. 1 L of Cola contains about 3.5 L dissolved CO₂.

[INeedSerotonin]

But if the can has only 375 mL of volume, how is it possible that there is more than 375 mL of CO2 inside?

Does that happen because the pressure is different inside and outside of the can?

[AWK]

Bottles or cans are filled under excess pressure of CO₂.