freedompyro
holmes1880
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Looking for a guide to Stoichiometry
I'm trying to wrap my head around it for oxygen balancing and wondered if anyone could suggest a book/online guide to how to do it?
Sucrose (C12H22O11) - 342.30 g/mol
Potassium Nitrate (KNO3) - 101.1032 g/mol
My vague idea of it is that I need to get the weight of carbon, hydrogen and oxygen in the sucrose... So that I know exactly how many grams of each
there is...
And get the weight of the potassium, nitrogen, and oxygen for KNO3. But, to solve this I also need the reaction equation? Just beginning to study
O-Chem a bit in my free time.
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Bot0nist
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http://cavemanchemistry.com/oldcave/projects/stoich/index.ht...
A good place to start.
U.T.F.S.E. and learn the joys of autodidacticism!
Don't judge each day only by the harvest you reap, but also by the seeds you sow.
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LanthanumK
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Add the individual atomic masses (found as atomic masses on the periodic table) for a molecule to find its molecular mass, which is the same number as
molar mass. So for KNO3 add the atomic mass for 1 K, 1 N, and 3 O to get the number for KNO3.
Atomic mass is atomic mass units/atom; molar mass is grams/mole. They have the same number although they have different meanings.
hibernating...
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watson.fawkes
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Quote: Originally posted by LanthanumK  | | Atomic mass is atomic mass units/atom; molar mass is grams/mole. They have the same number although they have different meanings.
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To remember approximately what an atomic mass unit is, it's approximately the mass of a proton (within a
percent). So one mole of protons weighs approximately one gram. Just counting the protons and neutrons in a molecule gives a good estimate of its
actual mass. This disregards nuclear binding energy, but is good for a mnemonic as well as quick estimates.
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leu
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Laborant will do the calculations:
http://www.sciencemadness.org/talk/viewthread.php?tid=4794#p...
as far as your specific question:
http://www.sciencemadness.org/talk/viewthread.php?tid=52#pid...
the search engine is your friend 
Chemistry is our Covalent Bond
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