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2 -A mixture of gases has the following composition by mass: CO2 15.5 % O2 18.9...

2 -A mixture of gases has the following composition by mass: CO2 15.5 % O2 18.9 % H2O 25.5 % NaCl 40.1 % (20 points) What is the molar composition (mole fractions of each gas)? (20 points) What is the average molecular weight of the gaseous mixture?

A mixture of gases has the following composition by mass:

CO2                 15.5 %

O2                    18.9 %

H2O                 25.5 %

NaCl                40.1 %

(20 points) What is the molar composition (mole fractions of each gas)?

(20 points) What is the average molecular weight of the gaseous mixture?

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