Q.

An unopened soda has an aqueous concentration of CO2 at 25oC equal to 0.0408 molal. Thus, pressure of CO2 gas in the can is (KH=0.034 mole/ Kg bar)

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0.671 bar

1.49 bar

1.39 bar

1.71 bar

answer is C.

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Detailed Solution

pCO2=m×KH=0.034×103×0.0408 =1.3872≅1.39

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