FIITJEE Mole concepts

Question 1

No of moles of the substance

Answer 1

weight of subs/molecular weight

Question 2

Conct.

Answer 2

Amt. of solute/Vol. in lit.

Question 3

Normality (N)

Answer 3

No of grams equivalent of solute / Vol. of sol in lit.

Question 4

Molarity (M)

Answer 4

No of moles of solute / Vol. of sol in lit.

Question 5

Equivant weight

Answer 5

molecular wt. / ‘n’

Question 6

relation b/w N and M

Answer 6

N= ‘n’ * M

Question 7

Molality (m)

Answer 7

No. of moles of solute / Wt. of solvent in kg.

Question 8

Formality (F)

Answer 8

Wt. of electrolyte / mol wt. of electrolyte
________________________________
Vol of sol in lit.

Question 9

Mole fraction (X)

Answer 9

Moles of Solute or Solvent
_____________________________
Moles of solute + Moles of solvent

Question 10

Relation b/w m, M, D

Answer 10

[ ( M * mol. wt. * V ) / 1000 + ( M * V ) / m ] / { V } = Density of solution

Question 11

Relation b/w Mole Fraction, molality

Answer 11

1000 * ( XA / XB ) = m * Mol. wt.

Question 12

Equivalent Wt.

Answer 12

Molecular wt.
_______________________________________________________
Acidity (or) Basicity (or) Transfer of e- (or) Valency (or) ‘n’ factor (or) O.N

Question 13

Basicity ( B )

Answer 13

No. of Replaceable H+ ion’s present in acids

Question 14

gram equivalents

Answer 14

N * V