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A mixture of CO2 and Kr weighs 46.6 g and exerts a pressure of 0.715 atm...

A mixture of CO2 and Kr weighs 46.6 g and exerts a pressure of 0.715 atm in its container. Since Kr is expensive, you wish to recover it from the mixture. After the CO2 is completely removed by absorption with NaOH(s), the pressure in the container is 0.255 atm. (a) How many grams of CO2 were originally present? (b) How many grams of Kr can you recover?

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