Question

calculate no. of moles of mg present in mangnesium ribbion of 12 g(molar mass of mv - 24g ) please tell correct answer ​

Answer 1

Answer:

Chapter 3. Stoichiometry: Mole-Mass Relationships in

Chemical Reactions

1

• The mole (or mol) represents a certain number of objects.

• SI def.: the amount of a substance that contains the same

number of entities as there are atoms in 12 g of carbon-12.

• Exactly 12 g of carbon-12 contains 6.022 x 10 23 atoms.

• One mole of H 2O molecules

contains 6.022 x 10 23 molecules.

• 1 mole contains 6.022 x 10 23 entities (Avogadro’s number)

Answer 2

Answer:

hope it helps..........