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# A sample of sulfur trioxide (SO3) weighs 5100g. How many molecules are contained in this sample? A sample of sulfur trioxide (SO3) weighs 5100g. How many molecules are contained in this sample? Use 80.063 the molar mass of SO3.

Use 6.022 x 1023 mol-1 for Avogadro's number.

Report your answer in scientific notation.

Your answer should have two significant figures.

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Answer #1 ✔ Recommended Answer Ans-3.8×10^25 molecules of SO3

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