Chemistry, asked by Anonymous, 11 months ago

What is the formula of mole.??

Answers

Answered by Anonymous
1

Remember, a mole is just a number, same as a dozen or a score. It just so happens that a dozen = 12, a score = 20 and a mole = 6.022E23 (approximately).

Using that (6.022E23 mol-1), you can calculate the number of moles in a given amount of something (e.g. molecules), and back. If you have the of what you want to calculate, you can also calculate between mass, moles, and number of molecules/atoms/whatever.

A couple of quick example to answer the question (how one can calculate moles):

If you have 1,000,000,000,000 molecules of sucrose, you can calculate the number of moles.. This is approximately 1.66E-12.

Maybe you are not interested in calculating how many moles a given number of molecules is. Maybe you are more interested in calculating the number of moles in a given mass of a given substance?

Then you need a different equation.

. Where n is the number of moles, m is the mass i grams, and M is the molecular weight in grams per mole.

As an example, if you have 10 grams of sucrose, then you can quickly google that the molecular weight is 342.3 g/mol. You can then calculate the number of moles by dividing the two: . Which gives ~ 0.029 mol.

Hope! I could.....


Anonymous: Thnxx
Answered by sanjeevku8720
0

moles=Mass /moler mass

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