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finding how many molecules of hydrogen were used?
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Topic: finding how many molecules of hydrogen were used? (Read 4235 times)
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monique2302
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Posts: 2
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finding how many molecules of hydrogen were used?
«
on:
January 16, 2011, 03:12:58 PM »
Ammonia is produced from its elements in a formation reaction. If 1.50 x 10^25 molecules of ammonia are produced, how many molecules of hydrogen were used?
So do I have to find how many moles there are first to find how many molecules their are?
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rabolisk
Chemist
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Posts: 494
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Re: finding how many molecules of hydrogen were used?
«
Reply #1 on:
January 16, 2011, 03:25:58 PM »
Try to attempt the question first, and I can help you along the way.
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AMEDIO
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Re: finding how many molecules of hydrogen were used?
«
Reply #2 on:
January 17, 2011, 04:53:04 AM »
yup
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sci994
Regular Member
Posts: 25
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Re: finding how many molecules of hydrogen were used?
«
Reply #3 on:
January 17, 2011, 06:19:05 AM »
You know the reaction?
It's 3H
2
+N
2
:rarrow:2NH
3
.
You calculate the mols of ammonia, then you calculate number of mols of hydrogen and ten you calculate the number of molecules.
N(number of molecules)=N
A
*n
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finding how many molecules of hydrogen were used?