Chemistry-
General
Easy

Question

0.005 M acid solution has 5 pH. The percentage ionisation of acid is

  1. 0.8%  
  2. 0.6 %  
  3. 0.4 %  
  4. 0.2 %  

The correct answer is: 0.2 %


    We know that,
    open square brackets H to the power of plus end exponent close square brackets equals 10 to the power of negative p H end exponent equals 10 to the power of negative 5 end exponent
    alpha equals fraction numerator a c t u a l blank c o n c e n t r a t i o n over denominator m o l a r blank c o n c e n t r a t i o n end fraction
    equals blank fraction numerator 10 to the power of negative 5 end exponent over denominator 0.005 end fraction equals 0.2 cross times 10 to the power of negative 2 end exponent
    thereforePercentage ionisation = 0.2 cross times 10 to the power of negative 2 end exponent cross times 100
    equals 0.2 percent sign

    Related Questions to study

    General
    Chemistry-

    At 90℃, pure water has H subscript 3 end subscript O to the power of plus end exponent ion concentration of 10 to the power of negative 6 end exponent m o l divided by L to the power of negative 1 end exponent. The K subscript w end subscript a t blank 90 ℃ is

    At 90℃, pure water has H subscript 3 end subscript O to the power of plus end exponent ion concentration of 10 to the power of negative 6 end exponent m o l divided by L to the power of negative 1 end exponent. The K subscript w end subscript a t blank 90 ℃ is

    Chemistry-General
    General
    Chemistry-

    Final pressure is higher than initial pressure of a container filled with an ideal gas at constant temperature. What will be the value of equilibrium constant?

    Final pressure is higher than initial pressure of a container filled with an ideal gas at constant temperature. What will be the value of equilibrium constant?

    Chemistry-General
    General
    Chemistry-

    For a reaction if K subscript p end subscript greater than K subscript c end subscript the forward reaction is favoured by

    For a reaction if K subscript p end subscript greater than K subscript c end subscript the forward reaction is favoured by

    Chemistry-General
    parallel
    General
    Chemistry-

    The reaction,2 S O subscript 2 end subscript open parentheses g close parentheses plus O subscript 2 end subscript left parenthesis g right parenthesis rightwards harpoon over leftwards harpoon 2 S O subscript 3 end subscript left parenthesis g right parenthesis is carried out in a 1 blank d m to the power of 3 end exponent vessel and 2 blank d m to the power of 3 end exponent vessel respectively. The ratio of the reaction velocities will be

    The reaction,2 S O subscript 2 end subscript open parentheses g close parentheses plus O subscript 2 end subscript left parenthesis g right parenthesis rightwards harpoon over leftwards harpoon 2 S O subscript 3 end subscript left parenthesis g right parenthesis is carried out in a 1 blank d m to the power of 3 end exponent vessel and 2 blank d m to the power of 3 end exponent vessel respectively. The ratio of the reaction velocities will be

    Chemistry-General
    General
    Chemistry-

    In which of the following reactions is K subscript p end subscript less than K subscript c end subscript?

    In which of the following reactions is K subscript p end subscript less than K subscript c end subscript?

    Chemistry-General
    General
    Chemistry-

    The mixed salt among the following is:

    The mixed salt among the following is:

    Chemistry-General
    parallel
    General
    Chemistry-

    What mole of C a open parentheses O H close parentheses subscript 2 end subscript is dissolved in 250 mL aqueous solution to given a solution of p H 10.65, assuming full dissociation?

    What mole of C a open parentheses O H close parentheses subscript 2 end subscript is dissolved in 250 mL aqueous solution to given a solution of p H 10.65, assuming full dissociation?

    Chemistry-General
    General
    Chemistry-

    How many gram of N a O H must be present in one l i t r e of the solution to give it a p H equals 12 ?

    How many gram of N a O H must be present in one l i t r e of the solution to give it a p H equals 12 ?

    Chemistry-General
    General
    Chemistry-

    Degree of hydrolysis (h) of a salt of weak acid and a strong base is given by

    Degree of hydrolysis (h) of a salt of weak acid and a strong base is given by

    Chemistry-General
    parallel
    General
    Chemistry-

    Would gaseous H C l be considered as an Arrhenius acid?

    Would gaseous H C l be considered as an Arrhenius acid?

    Chemistry-General
    General
    Physics-

    A current passing through a coil of self inductance of 2mH changes at the rate of 20m A s to the power of negative 1 end exponent. The emf induced in the coil is

    A current passing through a coil of self inductance of 2mH changes at the rate of 20m A s to the power of negative 1 end exponent. The emf induced in the coil is

    Physics-General
    General
    Physics-

    In an oscillations of L-C circuit, the maximum charge on the capacitor is Q. The charge on the capacitor, when the energy is stored equally between the electric and magnetic field is

    In an oscillations of L-C circuit, the maximum charge on the capacitor is Q. The charge on the capacitor, when the energy is stored equally between the electric and magnetic field is

    Physics-General
    parallel
    General
    Physics-

    The magnitude of the earth’s magnetic field at a place is B subscript 0 end subscript and the angle of dip is delta. A horizontal conductor of length l lying magnetic north-south moves eastwards with a velocityv. The emf induced across the conductor is

    The magnitude of the earth’s magnetic field at a place is B subscript 0 end subscript and the angle of dip is delta. A horizontal conductor of length l lying magnetic north-south moves eastwards with a velocityv. The emf induced across the conductor is

    Physics-General
    General
    Physics-

    In an induction coil with resistance, the induced emf will be maximum when

    In an induction coil with resistance, the induced emf will be maximum when

    Physics-General
    General
    Physics-

    A magnet N-S is suspended from a spring and when it oscillates, the magnet moves in and out of the coil C. The coil is connected to a galvanometer G. Then, as the magnet oscillates

    A magnet N-S is suspended from a spring and when it oscillates, the magnet moves in and out of the coil C. The coil is connected to a galvanometer G. Then, as the magnet oscillates
    Physics-General

    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.