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chio94's avatar

Gas Laws, find the mass?

Asked by chio94 (1points) January 17th, 2011
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2 NaN3(s)————->2Na(s)+3 N2(g) What mass of sodium azide is required to provide the nitrogen needed for complete combustion was contained in a 4.75 L flask at 22 C, what would its pressure be?

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LuckyGuy's avatar

Here’s a good hint for you.
One mole of a gas (the molecular wieght in grams) is 22.4 liters at STP (Standard temperature and pressure).
For example H2 (Hydrogen) is 2 so 2 grams of hyrogen is 22.4 liters @STP

What about CO2? 12 + 16 +16 = 44 so 44 grams of CO2 is 22.4 liters @STP.

This should get you going.

LuckyGuy (43718points)“Great Answer” (2points)
chio94's avatar

Thank You! worriedguy i was kinda stuck!

chio94 (1points)“Great Answer” (0points)

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