What is the total number of molecules in 11.2 liters of N2 gas at STP

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10-01-2016
Chemistry

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What is the total number of molecules in 11.2 liters of N2 gas at STP

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Willchemistry Willchemistry · Answer 1 · 2016-01-10T16:40:31-05:00

Willchemistry Willchemistry

10-01-2016

molar volume at STP = 22,4 L

1 mole -------------- 22,4 L
x mole -------------- 11,2 L

x = 11,2 / 22,4

x = 0,5 moles of N2

1 mole --------------- 6,02.10²³ molecules
0,5 moles ------------ y molecules

y = 0,5 . 6,02.10²³

y = 3,01.10²³ molecules

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