Question

If A:B=2:3 and B:C=2:3, then C:A is equal to ________.

if 0.04 l = 0.18m then l:m is?

If x/4 = y/7, then x:y =

The ratio of 0.7 m and 50 cm =

Answer 1

Answer:

Let the equilibrium concentrations of iodine and chlorine be x M each.

The initial concentrations of ICl,I

2

and Cl

2

are 0.78 M, 0 M and 0 M respectively.

The equilibrium concentrations of ICl,I

2

and Cl

2

are 0.78-2x, x and x M respectively.

K

c

=

[ICl]

2

[I

2

][Cl

2

]

0.14=

(0.78−2x)

2

x×x

x

2

=0.14(0.78−2x)

2

x=0.292−0.748x

x=0.167

Hence the equilibrium concentrations are,

[I

2

]=0.167M

[Cl

2

]=0.167M

[ICl]=0.78−2(0.167)=0.446M.