How do you get a chemistry mole?

Answer 1

One mole of something is 6.02 x 1023 (602,000,000,000,000,000,000,000) molicules (or atoms, if appropriate) of that substance. A gram molecular weight of anything will have one mole of molecules in it. Find out what substance you need a mole of, then find it's gram molecular weight. Take that much of the material (the gram molecular weight) and you've got your mole of that stuff.

Answer 2

The mole in chemistry is also called the chemist's dozen and is defined as the amount of material containing 6.0221421 X10^23 particles(This number is called Avogadro's number)

The value of mole is the number of particles in excactly 12 grams of c-12, so, if you have 12grams of c-12 , you will have 6.022x10^23 carbon atoms ,which is also a mol of C. For any other element a mol of that element is the Atomic Mass expressed as grams.

0.0265 g C find mol of C

plan

gC -> mol C

1 mol / 12.01 g C ( relationship; 1 mol C = 12.01 g C )

0.0265 g C x 1 mol C / 12.01 g C = 2.21 x 10 ^-3 mol C

to find atoms change to mol then times 6.022X10^23

3.10g Cu find Cu atoms

plan g -> mol cu -> atoms Cu

(3.10 g cu )x (1 mol Cu /63.55 g Cu ) ( 6.022 x 10^23 / 1 mol cu = 2.94 x 10^22 Cu atoms

Answer 3

if it exists as single atoms, the atomic mass is the mass of 1 mole. If it is diatomic, the 2 x the atomic mass is the mass of 1 mole. So, you can weigh, or mass, that amount and get one mole. Any that are gases, you can get 1 mole by finding 22.4 liters at STP.

Answer 4

A chemistry mole is a unit used to express amounts of substance. To calculate the number of moles, you divide the given mass of the substance by its molar mass (grams per mole). This can help in performing calculations involving chemical reactions and stoichiometry.