- #1
dopeantelope
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Please post this type of questions in HW section using the template.
A motor vehicle safety air bag contains sodium azide (NaN3) and potassium nitrate (KNO3). On impact, N2 is produced by the successive reactions:
Reaction 1: 2NaN3—> 2Na + 3N2
Reaction 2: 10Na + 2KNO3—> K2O + 5Na2O + N2
What volume of N2 (in dm3) is produced from 140 g of NaN3 at 273K and 1 x 105 Pa pressure?
Pay attention to significant figures as you calculate your answer and give your answer as a numericla figure only.
(Take Ar Na = 23.0, N =14.0; vol. 1 mol N2 = 22.7dm3 at 105Pa, 273 K).
____________________________________
I'm not looking for someone to give me the actual answer, I just would like someone to point me in the right direction and guide me please :)
I wasn't sure if this was a trick question at first, as there is only one mole of N2 as the final product is it just 22.7dm3?
Then I wasn't sure if it was just in the first equation, as there is 3 moles of N2, would i just multiply 22.7 by 3?
I'm not sure.
Any help/guidance would be greatly appreciated, thank you in advance! :)
Reaction 1: 2NaN3—> 2Na + 3N2
Reaction 2: 10Na + 2KNO3—> K2O + 5Na2O + N2
What volume of N2 (in dm3) is produced from 140 g of NaN3 at 273K and 1 x 105 Pa pressure?
Pay attention to significant figures as you calculate your answer and give your answer as a numericla figure only.
(Take Ar Na = 23.0, N =14.0; vol. 1 mol N2 = 22.7dm3 at 105Pa, 273 K).
____________________________________
I'm not looking for someone to give me the actual answer, I just would like someone to point me in the right direction and guide me please :)
I wasn't sure if this was a trick question at first, as there is only one mole of N2 as the final product is it just 22.7dm3?
Then I wasn't sure if it was just in the first equation, as there is 3 moles of N2, would i just multiply 22.7 by 3?
I'm not sure.
Any help/guidance would be greatly appreciated, thank you in advance! :)