Understanding Avogadro's Number and the Role of Carbon-12 in the Mole Concept

  • Chemistry
  • Thread starter Larrytsai
  • Start date
  • Tags
    Concept Mole
In summary, 12 grams of Carbon-12 is equal to 6.023 x 10^23 atoms, which is known as Avogadro's number or N_A. This amount of Carbon-12 is also referred to as 1 mole of atoms. When asking for help, it is important to be specific and provide enough information for others to understand your question.
  • #1
Larrytsai
228
0
Can someone explain to me what 12 grams of carbon 12 is and how to use avogrados number?
 
Physics news on Phys.org
  • #2
I think your question should be a little more specific. 12 grams of Carbon 12 is just that. . . it's 12 grams of Carbon 12.

Now there are probably many uses for Avro's number. Do you have an example?
 
  • #3
12 grams of Carbon-12 is a lot of things.. and for one as Saladsamurai said, it is 12 grams of Carbon-12.

From, your question and the post's title, one other thing that might be relevant to you is that the no. of atoms in 12 grams of Carbon-12 atom is known as the Avagadro's Number, or [itex]N_A[/itex] and is equal to [itex]6.023 \times 10^{23}[/itex]. That much of anything is said to be 1 mole of anything.

The 'mole' is something like a dozen or a gross. As 12 makes a dozen, [itex]6.023 \times 10^{23}[/itex] makes a mole. So, as u have a dozen of apples, u have a mole of atoms.

EDIT: Be a little more specific when asking questions in the homework forum. Vague and one-line questions give no clue as to what you mean. You don't buy this service, you ask for help. No hard feelings.
 
Last edited:

FAQ: Understanding Avogadro's Number and the Role of Carbon-12 in the Mole Concept

What is Avogadro's Number?

Avogadro's Number, denoted by the symbol "NA", is a fundamental constant in chemistry that represents the number of particles (atoms or molecules) in one mole of a substance. It has a value of approximately 6.02 x 1023 and is named after Italian scientist Amedeo Avogadro.

How is Avogadro's Number related to the mole concept?

The mole concept is a fundamental principle in chemistry that states one mole of any substance contains Avogadro's number of particles. This means that in one mole of a substance, there are 6.02 x 1023 atoms or molecules. This concept allows scientists to measure and compare the amount of particles in different substances.

What is the role of Carbon-12 in the mole concept?

Carbon-12 is used as the standard for the mole concept because it has a mass of exactly 12 atomic mass units (amu). This means that one mole of carbon-12 contains 6.02 x 1023 atoms and has a mass of 12 grams. This makes it easier for scientists to measure the amount of particles in other substances by comparison.

How is Avogadro's Number calculated?

Avogadro's Number is calculated using the formula NA = (molar mass of substance)/(mass of one atom or molecule). For example, to find the number of molecules in one mole of water, we would use the formula NA = (18 g/mol)/(3.34 x 10-23 g). This would give us a value of approximately 6.02 x 1023 molecules.

Why is understanding Avogadro's Number and the mole concept important?

Understanding Avogadro's Number and the mole concept is important because it allows scientists to quantify and compare the amount of particles in different substances. This is crucial in various fields of chemistry, such as stoichiometry, where the mole concept is used to determine the amount of reactants and products in a chemical reaction. It also helps in understanding the properties and behavior of substances at the atomic and molecular level.

Similar threads

Replies
15
Views
4K
Replies
4
Views
2K
Replies
2
Views
3K
Replies
4
Views
2K
Replies
6
Views
2K
Replies
4
Views
5K
Replies
6
Views
2K
Back
Top