Chemistry-
General
Easy

Question

The p K subscript b end subscript value of N H subscript 3 end subscript is 5. Calculate the pH of the buffer solution, 1 L of which contains 0.01 M N H subscript 4 end subscript C l blank a n d blank 0.10 blank M blank N H subscript 4 end subscript O H

  1. 4  
  2. 6  
  3. 8  
  4. 10  

The correct answer is: 10


    p O H equals K subscript b end subscript plus log invisible function application fraction numerator left square bracket s a l t right square bracket over denominator left square bracket b a s e right square bracket end fraction
    given, p K subscript b end subscript equals 5 comma open square brackets B a s e close square brackets equals 0.10 blank M comma
    open square brackets s a l t close square brackets equals 0.01 blank M
    therefore p O H equals 5 plus log invisible function application fraction numerator 0.01 over denominator 0.10 end fraction equals 4
    p H plus p O H equals 14
    therefore p H equals 14 minus 4 equals 10

    Related Questions to study

    General
    Chemistry-

    The number of ions formed when c u p r a m m o n i u m blank s u l p h a t e dissolves in water is:

    The number of ions formed when c u p r a m m o n i u m blank s u l p h a t e dissolves in water is:

    Chemistry-General
    General
    Chemistry-

    According to hard and soft acid-base principle, a hard acid

    According to hard and soft acid-base principle, a hard acid

    Chemistry-General
    General
    Chemistry-

    The equilibrium constants for the reactions are: The equilibrium constant for H subscript 3 end subscript P O subscript 4 end subscript rightwards harpoon over leftwards harpoon 3 H to the power of plus end exponent plus P O subscript 4 end subscript superscript 3 minus end superscript will be:

    The equilibrium constants for the reactions are: The equilibrium constant for H subscript 3 end subscript P O subscript 4 end subscript rightwards harpoon over leftwards harpoon 3 H to the power of plus end exponent plus P O subscript 4 end subscript superscript 3 minus end superscript will be:

    Chemistry-General
    parallel
    General
    Chemistry-

    A buffer solution contains 0.1 mole of sodium acetate dissolved in 1000 blank c m to the power of 3 end exponent of 0.1 M acetic acid. To the above buffer solution, 0.1 mole of sodium acetate is further added and dissolved. The pH of the resulting buffer is

    A buffer solution contains 0.1 mole of sodium acetate dissolved in 1000 blank c m to the power of 3 end exponent of 0.1 M acetic acid. To the above buffer solution, 0.1 mole of sodium acetate is further added and dissolved. The pH of the resulting buffer is

    Chemistry-General
    General
    General

    A charge q is placed at a distance a 2 above the centre of a horizontal square surface of edge a as shown in figure. The electric flux through the square surface is

    A charge q is placed at a distance a 2 above the centre of a horizontal square surface of edge a as shown in figure. The electric flux through the square surface is

    GeneralGeneral
    General
    Chemistry-

    The pH of a 0.001 M NaOH will be

    The pH of a 0.001 M NaOH will be

    Chemistry-General
    parallel
    General
    Chemistry-

    5 moles of X are mixed with 3 moles of Y. At equilibrium for the reaction, X plus Y rightwards harpoon over leftwards harpoon Z comma 2 moles of Z are formed. The equilibrium constant for the reaction will be

    5 moles of X are mixed with 3 moles of Y. At equilibrium for the reaction, X plus Y rightwards harpoon over leftwards harpoon Z comma 2 moles of Z are formed. The equilibrium constant for the reaction will be

    Chemistry-General
    General
    Chemistry-

    The reaction, A plus 2 B blank rightwards harpoon over leftwards harpoon 2 C plus D was studied using an initial concentration of B which was 1.5 times that of A. But the equilibrium concentration of A and C were found to be equal. Then the K subscript c end subscript for the equilibrium is :

    The reaction, A plus 2 B blank rightwards harpoon over leftwards harpoon 2 C plus D was studied using an initial concentration of B which was 1.5 times that of A. But the equilibrium concentration of A and C were found to be equal. Then the K subscript c end subscript for the equilibrium is :

    Chemistry-General
    General
    Chemistry-

    Which one of the following substances has the highest proton affinity?

    Which one of the following substances has the highest proton affinity?

    Chemistry-General
    parallel
    General
    Chemistry-

    A solution is called saturated if:

    A solution is called saturated if:

    Chemistry-General
    General
    Chemistry-

    According to Le-Chatelier’s principle adding heat to a solid and liquid in equilibrium with endothermic nature will cause the :

    According to Le-Chatelier’s principle adding heat to a solid and liquid in equilibrium with endothermic nature will cause the :

    Chemistry-General
    General
    Chemistry-

    In the dissociation of 2 H I rightwards harpoon over leftwards harpoon H subscript 2 end subscript plus I subscript 2 end subscript comma the degree of dissociation will be influenced by the:

    In the dissociation of 2 H I rightwards harpoon over leftwards harpoon H subscript 2 end subscript plus I subscript 2 end subscript comma the degree of dissociation will be influenced by the:

    Chemistry-General
    parallel
    General
    Chemistry-

    Consider the reaction equilibrium 2 S O subscript 2 end subscript open parentheses g close parentheses plus O subscript 2 end subscript open parentheses g close parentheses rightwards harpoon over leftwards harpoon 2 S O subscript 3 end subscript open parentheses g close parentheses comma blank increment H degree equals negative 198 blank k J On the basis of Le-Chatelier’s principle, the condition favourable for the forward reaction is

    Consider the reaction equilibrium 2 S O subscript 2 end subscript open parentheses g close parentheses plus O subscript 2 end subscript open parentheses g close parentheses rightwards harpoon over leftwards harpoon 2 S O subscript 3 end subscript open parentheses g close parentheses comma blank increment H degree equals negative 198 blank k J On the basis of Le-Chatelier’s principle, the condition favourable for the forward reaction is

    Chemistry-General
    General
    Chemistry-

    A certain buffer solution contains equal concentration of X to the power of minus end exponent and H X. The K subscript a end subscriptfor H X is 10. The pH of the buffer is:

    A certain buffer solution contains equal concentration of X to the power of minus end exponent and H X. The K subscript a end subscriptfor H X is 10. The pH of the buffer is:

    Chemistry-General
    General
    Chemistry-

    A student wants to prepare a saturated solution of A g to the power of plus end exponent ion. He has got three samples A g C l open parentheses K subscript s p end subscript equals 10 to the power of negative 10 end exponent close parentheses comma blank A g B r left parenthesis K subscript s p end subscript equals 10 to the power of negative 13 end exponent right parenthesis and A g subscript 2 end subscript C r O subscript 4 end subscript open parentheses K subscript s p end subscript equals 10 to the power of negative 12 end exponent close parentheses. Which of the above compound will be used by him using minimum weight to prepare the saturated solution?

    A student wants to prepare a saturated solution of A g to the power of plus end exponent ion. He has got three samples A g C l open parentheses K subscript s p end subscript equals 10 to the power of negative 10 end exponent close parentheses comma blank A g B r left parenthesis K subscript s p end subscript equals 10 to the power of negative 13 end exponent right parenthesis and A g subscript 2 end subscript C r O subscript 4 end subscript open parentheses K subscript s p end subscript equals 10 to the power of negative 12 end exponent close parentheses. Which of the above compound will be used by him using minimum weight to prepare the saturated solution?

    Chemistry-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.