What is the mass of 10 molecules of nitrogen dioxide, no2, in g? use 3 sig. fig?

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03-10-2017
Chemistry

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What is the mass of 10 molecules of nitrogen dioxide, no2, in g? use 3 sig. fig?

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kritter1 kritter1 · Answer 1 · 2017-10-03T13:22:23+02:00

kritter1 kritter1

03-10-2017

Find the molecules in moles.

10/(6.02 x 10^23) = 1.66 x 10^-23 moles

mass = moles x molar mass

m= 1.66 x 10^-23 moles x 46 g mol^-1

m= 7.64 x 10^-22 grams

Hope I helped :)

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