Can you explain mole concept?

Question

IT'S RELATED 2 CHEMISTRY

Answer 1

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Answer 2

A mole is a unit in chemistry that consists of 6.02 x 10^23 particles of something--it's usually used to refer to things like atoms or molecules, but you can have a mole of anything. It's just a unit like inches or pounds. Anyways, one of the concepts behind having a unit like the mole is so that there's a standard unit for measuring how much elements and compounds weigh. All of the atomic masses on the periodic table are measurements in grams of how much one mole of that element weighs. I hope this helps you at least a little bit.

Answer 3

I mole of anything is defined as 6.02x10^23 units of anything. The mole is a word used instead of the numerical quantity just like the word "dozen" is used instead of the number 12, or the word "gross" is used instead of 144. 1dozen people is 12 people. Since 1 person has 2 arms, 1dozen persons will have 24 arms or 2 dozen arms. 1) 1 mole of CH3COOH contains 4 moles of H 2) 1 mole of CH3COOH contains 2 moles of C 3) 1 mole of CH3COOH contains 2 moles of O

Answer 4

the mole (symbol: mol) is the SI base unit that measures an amount of substance. One mole contains Avogadro's number (approximately 6.022×1023). A mole is much like "a dozen" in that both units can describe any set of elementary objects, although the mole's use is usually limited to measurement of subatomic, atomic, and molecular structures. This is all due to the fact that a mole represents an exceedingly large number of entities.

Answer 5

Atoms and molecules are too small to be seen and handled so it doesn't make sense to use them. But we need to know relative masses for the atoms - like, helium is about 4 times heavier than hydrogen but about 4 times lighter than oxygen. To do this we have to compare the same number of atoms (doesn't matter how many just as long as we have the same amount). So, we've all agreed to use the number 6.022 x 10^23 (don't worry about where it came from, just trust me - that's the number we use). But, being chemists, we don't like to write a lot (that's why we use symbols, not names, and chemical equations) so we gave that number a name, mole, and we abbreviate it "mol" (I told you we don't like to write at lot). The number and the word go together like the word "dozen" means 12. It doesn't matter what you are talking about, "dozen" always means 12. And the word "pair" means 2 and it doesn't matter if you have a pair of hamsters or a pair of moons; you still have 2. So the word "Mole" means a number. It doesn't matter what you have a "mole" of - oranges, dollars, people or atoms - you have a whole big amount of them, 6.022 x 10^23.

So, if you look at a periodic table you will see atomic masses for the elements. These are RELATIVE masses. You will see helium is about 4 times heavier than hydrogen and about 4 times lighter than oxygen. Now, if you collect the same number of atoms of each element, and the number you collect is 6.022 x 10^23 atoms, those atomic masses will be how much those atoms weight in GRAMS. So we would write hydrogen's atomic mass is 1.0079 grams per mole (or you could say 6.022 x 10^23 atoms of hydrogen weigh 1.0079 grams) and the same number of helium atoms weigh 4.003 grams per mole (or 4.003 grams is the mass of 6.022 x 10^23 helium atoms).

Anytime you use an atomic mass from the periodic chart you can write the units as grams/mol and you will have the mass of the same number of atoms (6.022 x 10^23) for each element.

Answer 6

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Answer 7

mole concept is used to find the mass of an atom of an element.
1 mole = 6.022 x 10raised to the power 23
this no. is called avogardo no. in the honour of antevilo avogardo.

Answer 8

a mole is a substance which contains the same number of particles as 12 grams of carbon

Answer 9

the number of particle (atoms,molecules or ions ) present in 1 mole of any substance is fixed,with a value of 6.022x1023

Answer 10

find someone who have mole in their chin or another part of body, and ask them how can they do it