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OpenStudy (anonymous):
100 cm^3 of Nitrogen gas have a mass of 0.14 g. 1) Calculate the molar mass of a gaseous hydrocarbon if 250 cm^3 of this gas weighs 0.7 g at the same temperature and pressure of nitrogen. Thank you! will give medal!
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OpenStudy (anonymous):
@swissgirl @Sonyalee77 @sabwises @abb0t @thomaster
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