mole concept Flashcards
chapter 1
1
Q
1 amu =
A
1/6 x 10^ 23 = 1.67 x 10^-24 g
2
Q
no. of moles =
A
given wt/ molar mass
3
Q
no of moles of atom=
A
atomicity x m/mr
4
Q
% in terms of moles =
A
no. of c atoms/ total no. of atoms x 100
5
Q
% in terms of mass=
A
mass of c/mr x 100
6
Q
density=
A
m/v
7
Q
vapour density=
A
d of comp/d of h2= compound mass/ h2 mass
8
Q
for 1 mole vd =
A
mr/2
9
Q
stp , ntp
A
22.4L , 22.7L
10
Q
no of moles =
A
given volume(L)/22.4
11
Q
mole fraction X =
A
na/na+nb
12
Q
1L of h2o =
A
55.5 moles
13
Q
Molarity (M)=
A
moles of solute/vol of sol
(no. of moles of solute in 1 L of solution)
14
Q
molarity (m)=
A
moles of solute/mass of solvent(kg)
(no. of mole of solute in 1 kg of solution)
15
Q
pv=
A
nRT
