Mole Concept formulas

Every formula JEE Advanced expects you to know for Mole Concept, with the variables spelled out. Free, no sign-up. Read it before a mock, not during one.

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Formulas: 22
Subject: Chemistry
Exam: JEE Advanced
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Mole Concept, every formula

22 formulas, typeset and free. Print it, or keep it open beside your practice.

Number of moles (mass)
$n = \frac{given mass}{molar mass} = \frac{w}{M}$
Number of particles
$N = n \times N_{A}$
N_A = 6.022×10²³
Moles from volume (gas, STP)
$n = \frac{V ( L )}{22.4}$
at STP
Avogadro's number
$N_{A} = 6.022 \times 1 0^{23} mol^{- 1}$
Molar mass of a gas
$M = \frac{mass}{moles}$
Mole fraction
$x_{A} = \frac{n _{A}}{n _{A} + n _{B}}$
Molarity
$M = \frac{moles of solute}{volume of solution (L)}$
Molality
$m = \frac{moles of solute}{mass of solvent (kg)}$
Normality
$N = \frac{gram equivalents}{volume (L)}$
Normality–molarity relation
$N = M \times n -factor$
Equivalent weight
$E = \frac{molar mass}{n -factor}$
Percentage by mass
$% (w / w) = \frac{mass of solute}{mass of solution} \times 100$
ppm
$ppm = \frac{mass of solute}{mass of solution} \times 1 0^{6}$
Empirical formula mass relation
$molecular formula = n \times empirical formula$
Molecular formula factor
$n = \frac{molar mass}{empirical formula mass}$
Dilution
$M_{1} V_{1} = M_{2} V_{2}$
Mixing solutions
$M = \frac{M _{1} V _{1} + M _{2} V _{2}}{V _{1} + V _{2}}$
Vapour density
$molar mass = 2 \times vapour density$
Average atomic mass
$\overset{ˉ}{A} = \sum x_{i} A_{i}$
isotopic abundance
Law of definite proportions
$a compound has a fixed mass ratio of elements$
Limiting reagent
$reactant consumed first limits the product$
Atoms in a molecule
$atoms = n \times N_{A} \times (atomicity)$

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Mole Concept formulas

Mole Concept, every formula

Number of moles (mass)

Number of particles

Moles from volume (gas, STP)

Avogadro's number

Molar mass of a gas

Mole fraction

Molarity

Molality

Normality

Normality–molarity relation

Equivalent weight

Percentage by mass

ppm

Empirical formula mass relation

Molecular formula factor

Dilution

Mixing solutions

Vapour density

Average atomic mass

Law of definite proportions

Limiting reagent

Atoms in a molecule

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Know the Mole Concept formulas. Now use them.

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