How to solve numericals based on the mole concept?

no. of moles=given mass/molar or atomic mass

1 mole has 6.022*10^23 atoms/ions/molecules

use unitary method

Use this formula

No.of mole = Given mass / Molar mass

and

No.of mole = given no. of paricles / Avogadro no.

and

Given mass / Molar mass = given no. of paricles / Avogadro no.

if i am to prepare 10 ml soluion of 0.2 M zinc acetate in dimethyl sulfoxide than what amount of dimethylsulfoxide should i take to prepare desired solution?

please solve it complet

Use this formula

No.of mole = Given mass / Molar mass

and

No.of mole = given no. of paricles / Avogadro no.

and

Given mass / Molar mass = given no. of paricles / Avogadro no.

1. Type 1: To find no. of moles in a given mass no. of moles=given mass/atomic or molecular mass.
2. Type 2: To find no. of atoms/molecules in a given mass : first the no. of moles by using the formula that we've used to solve Type 1 numericals and multiply the answer with Avagadro constant.
3. Type 3: To find no. atoms/molecules in a given mole :No.of atoms/molecules in a given no. of mole=No. of mole * Avogadro no.
4. Type 4: To find mass of an atom(s)/molecule(s) :Mass of atoms or molecules=Gram atomic or molecular mass/Avogadro number.