What does Mole of compound, moles of element, and atoms of element mean?

Answer 1

The mole is the standard method in chemistry for communicating how much of a substance is present.

Here is how the International Union of Pure and Applied Chemistry (IUPAC) defines "mole:"

The mole is the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon-12. When the mole is used, the elementary entities must be specified and may be atoms, molecules, ions, electrons, other particles, or specified groups of such particles.

This is the fundamental definition of what one mole is. One mole contains as many entities as there are in 12 grams of carbon-12 (or 0.012 kilogram).

In one mole, there are 6.022 x 1023 atoms. Here's another way: there are 6.022 x 1023 atoms of carbon in 12 grams of carbon-12.

Let's say that real clearly: one mole of ANYTHING contains 6.022 x 1023 entities.
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its a unit of measurement
a mole of a compound is 6. whatever entities of that compound.
a mole of an element is 6.whatever entities of that element.
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Atoms of an element - well, atoms are another unit of measure -- Atoms are the basic building blocks of matter that make up everyday objects. A desk, the air, even you are made up of atoms!

Answer 2

a mole of compound/element is simply equal to the avogdros number 6.02x10 raise to 23 entities.

Examples:
a mole of carbon (an element) has 6.02x10 raise to 23 atoms of C
a mole of H2O (a compound) has 6.02x10 raise to 23 molecules of water

now a mole of water here has 2moles of H and a mole of O
a molecule of water has 2 H atoms and 1 Oatom.

but a mole of water and a mole of C will have different mass.

so think it this way: lets say dozen, when we speak of a dozen we always think of 12 items/units. if we have a dozen of eggs and a dozen of glasses, we always think there are 12 items. But they will have different mass.

Answer 3

A mole is a unit of measurement used to measure chemical compounds, molecules, and such. Moles are measured using Avagadro's number which is 6.022 x 10 ^ 23. For example, if you have one mole of sodium atoms, you would have
6.022 x 10 ^ 23 atoms of sodium. Hope this helps.

Answer 4

the number on the bottom of the element square is the # of moles in an element

i.e.: oxygen=16 moles

mole of a compound is basically like : if you have h2o, you take the number of moles in hydrogen (1.01) and multiply it by 2 since there are 2 atoms of hydrogen then add it by 16 (oxygen) and the number you would get, 18.02 is the molar mass of H20

Answer 5

I mol of a compound is comparable to the Molecular weight of that compound. to illustrate, I mildew of H (hydogren) = a million.01 grams so H = a million.01 grams/mol. you ought to use this innovations to transform between different issues.