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A mole is 6.022 x 1023 units of a substance, usually the number of molecules present. It is normalized to the mass of Carbon-12, which is 12 grams per mole. The mole is a convenient way to express how much of a substance is present, because you usually want to know how many atoms and molecules are present before and after a reaction, rather than just deal with grams and have to convert by molecular mass.
For eg:, A+water==== B, and if 8g of A is taken in an experiment, then how much grams of B can it yield is to be found out. Since the experimental quantities are in grams, you consider 1 mole as the mol.wt of that substance in grams.
So, if molwt of A is 26 and that of B is 20, the
1 mole of A= 1mole of B according to the above reaction.
Thus, 26g of A= 20g of B
so, 8g of A = x gram of B
hence, X= 8*20/26
Actually, practical yield is less than X due to experimental losses.
so percentage yield can be calculated by - Practical yield/ X *100.
Thus, the mole concept helps in arriving at these answers. If a molecule splits up in a reaction, even integral moles can be obtained i.e 1/2 mole or 3/4 mole.
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∙ 13y ago
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∙ 11y agoMole is a unit of concentration - an amount of substance containing a number of molecules or atoms equal to the number of atoms in 12 g of the isotope carbon-12. The symbol in SI is mol.
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∙ 12y agoThey sleep.
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∙ 12y agonush
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What should you use to take of a mole?
get surgery
Does the mole of solution is equal to mole of solute plus mole of solution?
No. The mole of solution is equal to mole of solute plus mole of solvent (solVENT !, not solution)
How do you get the number of moles in 28grams per mole of N2?
Use the dimensional analysis to get your answer
What types of chemistry does pharmacy use?
Quantities and quantities, the mole, composition and biochemistry
What is fugacity?
Like a pressure, but with non-ideality Use as a pressure Fugacity = mole fraction of gas * total pressure Mole fraction of CO2 in atmosphere? 383 ppmv
How do you use Mole in a sentence?
we can see animal mole
What are mole claws?
Mole claws are claws that moles use to dig holes to live in.OK
Where do you use chemical mole?
its a unit in chemistry
What animals use whiskers to smell?
Mole?
What should you use to take of a mole?
get surgery
How much does 1 mole of Fe weigh in grams?
Use stoichometry to figure this out. 1 mole Fe * 56 g Fe ...............1 mole Fe
Freerider2 skact tracks?
ben critaly from verdin high school in winsfor chesire England and lives at 10 lower hiagh street near doddy is a fkn little gay mole he sent me a message saying that he like me in a agy way ben critaly from verdin high school in winsfor chesire England and lives at 10 lower hiagh street near doddy is a fkn little gay mole he sent me a message saying that he like me in a gay way mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole mole
Cpt code for biopsy of mole on skin?
Use CPT 11100 for the first mole and CPT 11101 for additional moles.
What rhymes with overabundance?
mole mole mole mole mole mole
What do we use mole ratios for?
To convert from one substance to another
What is the unit of mole fraction?
Mole fraction is dimensionless. It's the amount of moles of species "A" divided by the total amount of moles in the mixture. So "mole A / mole total" equals "dimensionless". To add clarity in the use of mole fractions, one could add as "unit" mole A / mole "mixture".
What instrument could be used to measure a mole of solid solute particles?
We could use a laboratory scale to measure a mole of solid material. A mole represents Avogadro's number of atoms or molecules of the solid material. Table salt, sodium chloride, for instance has a weight of 58.44277 grams per mole. The scale in the chemistry lab would be the instrument to use to measure that and to measure out a mole of most other solids.
