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Avogadro's number is the number of units per mole. A mole is 6.022x1023 (602,200,000,000,000,000,000,000) units. Because every element has a unique mass, it is primarily useful in chemistry for stoichiometric calculations. Hydrogen for example has a mass of ~1.01 grams per mole, so one gram of atomic hydrogen contains approximately 1 mole of hydrogen atoms, or 6.022x1023 hydrogen atoms. It seems arbitrary until you examine it's applications in practical use.
To create a molecule of water you need to combine 2 hydrogen atoms with one oxygen atom, along with a little bit of energy:
2H + O --> H2O
If you want to do this efficiently, you can't just throw 2 grams of hydrogen atoms together with 1 gram of oxygen atoms to create 3 grams of water because hydrogen and oxygen have different molecular masses. One oxygen atom is about 16 times heavier than 1 hydrogen atom, so with the above approach you'll only end up with about 1.125 grams of water with about 1.875 grams of hydrogen still floating about. This is where Avogadro's number comes into play.
Hydrogen is ~1 gram per mole (1 gram per 6.022x1023 atoms) and Oxygen is ~16 grams mer mole (16 grams per 6.022x1023 atoms). So to create 1 mole of water you need to combine approximately 2x6.022x1023 hydrogen atoms with approximately 6.022x1023 oxygen atoms, light a match, and prepare to get burned.
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Avogadros number was calculated as the number of?
atoms in 12 g of c-12
What is the unit of avogadros number?
The unit is "per mole", or mol^-1.
What is the relationship beween avogadros number and the mole?
Avogadro's number represents the number of units of a substance in one mole of the substance. These units may be electrons, atoms, ions, or molecules, depending on the substance.
What is the relationship between avogadros number and one mole of any substance?
A mole of any substance has the Avogadro's number of such units. As an example, a mole of hydrogen atoms is equivalent to 6.022 x 1023 atoms.
Avogadros number of phosphorus P atoms would have a mass of?
By saying Avogadro's number of atoms, you are saying one mole (or 6.02 × 1023 atoms). And one mole of any elements is its atomic mass. Phosphorus' atomic mass is 31.0 grams
In Avogadros number is defined as the number of particles in?
A mole.
Do avogadros number have anything to do with mass and velocity of atoms?
No.
How do you say 6.02X1023 in plain form?
Its avogadros number
What is Aeogaeros Number?
I asked this question wrong. It should be Avogadros Number. Sorry!
Avogadros number was calculated as the number of?
atoms in 12 g of c-12
What is the numerical of Avogadros number?
It is 6.02 (times) 10 to the power of 23
What is the unit of avogadros number?
The unit is "per mole", or mol^-1.
Avogadros number is the number what?
It is the number of fundamental particles - atoms or molecules - of a substance in 1 mole of that substance.
How many moles of atoms are in 6.0221023 atoms Ne?
There is 1 mole of atoms in 6.022 x 10^23 atoms of any element.
One mole is equal to how many grams?
Its avogadros number which is 6.02 X 10^23 g/mol
What is the relationship beween avogadros number and the mole?
Avogadro's number represents the number of units of a substance in one mole of the substance. These units may be electrons, atoms, ions, or molecules, depending on the substance.
What information does moles provide using Avogadros number?
1 mole has 6,022 140 857 (74).1023 molecules, atoms, ions.
