# How to solve numericals based on the mole concept?

use this formulae

mole=given mass/molar mass

• 1

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

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

use unitary method

• 10

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.

• 11

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

• 3

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
THUMPS UP!!!!!! PLZZZZZ
• -1
There are mainly 4 types of problems in mole concept.
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.
• 25
thankyou...

• -2
rainde
• -6
to find no of moles when density is given then use :- mass = density * volume Them mass/ molar mass *1000/given volume
• 0
Thks
• 0
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