- #1
matthew77ask
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the mass of a 250cm3 round bottomed flask is filled with gas X is determined to be 16.2850g. the mass of the empty flask and stopper is 15.9516g. what is the molar mass of gas X?
am i right to do it this way:
mass of gas X alone = 16.2850 - 15.9516 = 0.3334g
volume of gas X = 250/1000 = 0.25 dm3
molar mass of gas X = 0.3334/0.25 = 1.3336g/dm3
however, the answer is 32g, where did i make a mistake?
thank you
am i right to do it this way:
mass of gas X alone = 16.2850 - 15.9516 = 0.3334g
volume of gas X = 250/1000 = 0.25 dm3
molar mass of gas X = 0.3334/0.25 = 1.3336g/dm3
however, the answer is 32g, where did i make a mistake?
thank you