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Mathematics, 09.09.2021 18:10 feefee945

A chemist collected about 3535 grams of oxygen molecules in a gas syringe. ​Assume that there are 7.25\cdot 10^{23}7.25⋅10
23
molecules of oxygen in the syringe.



​a.) Find the mass of one oxygen molecule in kilograms.

​Write your answer in scientific notation. Round the coefficient to the nearest tenth.



​ Mass =
kilograms



​b.) Calculate the mass of one oxygen atom if an oxygen molecule consists of 2 atoms.

​Write your answer in scientific notation. Round the coefficients to the nearest tenth.



​ Mass =

kilograms

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