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09-09-2022
Chemistry

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4.2 Rachel measured the mass of an empty 250 cm³ flask. She then filled the flask with a gas of unknown molar mass at an atmospheric pressure of 100 kPa and a temperature of 27 °C. She found that the mass of the flask and contents increased by 0,44 g. a) Calculate the molar mass of the gas Rachel used to fill the flask.

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