Emperical formula....means?
give an example...
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it is the simplest formula of a compound...like empirical formula of CH3OH is CH4O
drbabbarprashant:
achaa
let us assume that we have 100 g compound hence 42%N becomes 42g N and so O and H... then calculate their moles ..moles of N = 42/14 =3...Similarly moles of O are 48/16 =3...and of H = 1/1 = 1...THEN divide each calculated value of mole by smallest number of mole we have found like in this case moles of H are smallest ie 1...hance 3/1.....3/1......1/1...hence emperical formula comes out to be N3O3H
ok thnks
a lot
sry H 9 g hai....it will be 9/1....9 moles of H....
the smallest number will be 3....divide each calculated value of mole by 3...which comes out to be NOH3
emperical formula will be NOH3
3/3....3/3....9/3
ok i understood...thnku
wc
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Glucose has a molecular formula of C6H12O6. It contains 2 moles of hydrogen for every mole of carbon and oxygen.
So...The empirical formula for glucose is CH2O.
how to find it
Take 2common...In every sum..We have to take common...Whc is divisible by it..
Sry...Nt 2 ..We have to take 6common... In that.. Glucose.empirical formula...And in others formulas we have to take common whc is divisible by it
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