please help me i am studying chemistry in a different language that i had just studied for one year and now i am confused.
2007-10-11 04:27:59 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
it's 6.02 x 10^23. it's the number of "entities" in one mole (like atoms in a mole of atoms)
2007-10-11 04:36:22 · answer #1 · answered by kiaora83 3 · 1⤊ 0⤋
The avogadro number or the avogadro constant is the number of particles in one mole of any substance. It is denoted by L and has a value of 6.02 x 10^23.
To understand it, it's best to have an example.
Consider this question: How many oxygen molecules are there in 1/8 moles of oxygen gas?
The answer is:
The molecules are assumed to be particles here.
Hence,
1 mole of oxygen = 6.02 x 10^23 molecules of oxygen
1/8 moles of oxygen = (1/8 x 6.02 x 10^23) molecules of oxygen, which is 7.52 x 10^22 molecules of oxygen.
Hope this helps.
2007-10-11 14:02:15 · answer #2 · answered by Farhali 2 · 0⤊ 0⤋
The avogadro constant is from an called loschmidt he was the first man to estimate this number and later measurements have confirmed that it is close to 6.02*10^23. The avogadro constant, given the symbol l in honour of loschmidt it is said to be 6.02*10^23mol-1.Not only does 1 mole of carbon atoms have l atoms, but 1 mole of atoms of any other element also has l atoms in it.example:
a mole of oxygen atoms has l atoms and weighs 16g but a mole of oxygen molecules,02, has 2l atoms and weighs 32g.
i hope this works i hope i havent confused you.
2007-10-11 12:07:39 · answer #3 · answered by Anonymous · 0⤊ 0⤋
The Avogadro Number is 6.023 x 10^23, the number of molecules in one molar mass of an element or compound, respectively.
2007-10-11 11:35:12 · answer #4 · answered by TitoBob 7 · 1⤊ 0⤋
An Avogadro numebr is not a series of numebrs its just one number
6.02 X 10^23 mol^-1
Its a constant that ratios out an amount of "entitiies" to one mole. Your book would probably want to know, how many atoms, molecules, grams, etc. are in one mole of x element.
(i.e: Calculate the mass (in grams) of one molecule of H2O (water).
First figure out the gram formula mass of H2O which is 18.015 g/mol
Second take the quotient of 18.015 g/mol and 6.02X10^23mol^-1 (Avogadros number) = 2.99X10^-23g
There you go!!!
2007-10-11 11:55:28 · answer #5 · answered by Anonymous · 0⤊ 0⤋
The avogadro number is 6.03*10^23...
May I kindly ask what school level are you?
:D
2007-10-11 11:46:32 · answer #6 · answered by xvr_00508022 2 · 0⤊ 0⤋
As already given , but add The Maxwell Boltzmann and Arrhenius equations to it , just to confuse.
2007-10-12 06:38:13 · answer #7 · answered by bottle babe 4 · 0⤊ 0⤋
Its 6.022*10^23 power
2007-10-11 11:37:06 · answer #8 · answered by Anonymous · 0⤊ 0⤋
-no. of particles of an element
-is equal to 6.02x10^23
-by amedeo avogadro
2007-10-11 11:50:03 · answer #9 · answered by anobody 3 · 0⤊ 0⤋