ionic bond
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percentage of NH4ClO4 in a reaction
Hi
given the reaction:
2NH4ClO4 ---> N2 + Cl2 + 2O2 + 4H2O
45.6 gr of impure sample of NH4ClO4 is placed in a 5.0 L flask and heated to 250 C. If the pressure of H2O resulted is 2750 mmHg. What is the
precentage of NH4ClO4 in the sample?
Thanks
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vulture
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We're not going to answer this question for you. Try putting some effort into it yourself, then come back and report.
Members, please don't spoonfeed him the answers.
One shouldn't accept or resort to the mutilation of science to appease the mentally impaired.
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Dodoman
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How old are you? You should be ashamed. In my country that's like highschool physics. I don't know about you but i guss that's
highschool physics too.
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JohnWW
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Doing that to 46 gm of NH4ClO4 would result in the flask blowing up! Anyone standing near it would also stand a good chance of being "taken
out".
John W.
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ionic bond
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I am 17 years old
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vulture
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That's not an excuse.
Like I said before, describe or provide some figures how you started calculating and where you failed.
One shouldn't accept or resort to the mutilation of science to appease the mentally impaired.
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ionic bond
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I tried to calculate the number of moles of water
PV = nRT
but I don't have the V here!
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BromicAcid
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It's a 5.0 L flask.......
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MadHatter
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NH4ClO4
I might try to dry out NH4ClO4 with a flask submerged in boiling
water with CaCl2 in a drying tube. But to do this over an open flame,
you're asking for a detonation. Like Vulture suggested, do some research
or UTFSE ! Otherwise, just buy it !
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BromicAcid
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I'm pretty sure this was just a homework question, not a general purity assay.
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ionic bond
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thats right
its just a question
but not a homework because we don't have school these days
I will try:
PV = nRT
n = PV/RT
n = 3.62*5/0.0821*523 = 0.422 moles of NH4ClO4
Mw = 117.5
117.5*0.211= 24.8
24.8 / 45.6 = 54%
???
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vulture
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No, 0.422 moles of water vapor...
One shouldn't accept or resort to the mutilation of science to appease the mentally impaired.
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ionic bond
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that was a mistake
0.211 was the number of moles of NH4ClO4
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vulture
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Ah yes, I noticed now, I was wondering where the 0.211 came from.
Anyways, it should be correct now.
Ofcourse, this isn't very realistic, water vapor doesn't behave as an ideal gas at pressures of several atmospheres.
[Edited on 17-8-2004 by vulture]
One shouldn't accept or resort to the mutilation of science to appease the mentally impaired.
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ionic bond
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thanks alot
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