if a sample of neon (Ne) contains 1.01×10^22 atoms, what is it's mass

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03-10-2017
Chemistry

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if a sample of neon (Ne) contains 1.01×10^22 atoms, what is it's mass

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AmulAyaz AmulAyaz · Answer 1 · 2017-10-03T20:28:52+02:00

AmulAyaz AmulAyaz

03-10-2017

no of atoms=mass in grams×6.02×10²³/atomic mass
mass in grams= no of atoms of neon×atomic mass/ 6.02×10²³
mass in grams= 1.01×10²²×20/6.02×10²³
mass in grams=2.02×10²³/6.02×10²³
mass in grams=0.3355 grams

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