Mole concept pls help you guys

Question

I want all the basic formulas related to mole concept??

Pls can you share them it's urgent.

Answer 1

(1) Number of moles of molecules= Wt in grams/molecular wt.

(2) Number of moles of atoms= Wt in grams/Atomic wt.

(3) Number of moles of gases= Volume at NTP/std molar volume.

   (Standard molar volume is the volume occupied by 1 mole of any gas at NTP, which is equal to 22.4 litres.)

(4) No. of mole of atoms/molecules/ ions/ electrons = no. of atoms or molecules or ions or electrons/ Avagadro constant.

(5) Number of moles of solute = molarity x volume of solution in litres

                                              or

no. of millimoles = molarity x volume in mL.

        

                        millimoles/1000=moles.

(6) For a compound Mx Ny, x moles of N=y moles of M.