A glass of cola is fizzy because carbon dioxide, CO2, has been dissolved in it under pressure. When the cola is poured out of the can, CO2 is gradually released as bubbles of gas. The cola will eventually go flat, as the concentration of dissolved CO2 decreases to its saturation level. A saturated solution of CO2 at room temperature has a concentration of 1.50 g dm-3. A 500 cm3 can of cola has 2.00 g of CO2 dissolved in it under pressure. Calculate the volume of CO2 that is released to the atmosphere as it goes flat, assuming CO2 behaves as an ideal gas at room temperature and pressure.

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