Question

If pKb for fluoride at 25°c is 10.83, the ionization constant of hydrofluoric acid in water at this temperature is?

a.

3.52×10⁻³

b.

6.75×10⁻⁴

c.

5.38×10⁻²

d.

1.74×10⁻⁵

Answer: (b).6.75×10⁻⁴

Interact with the Community - Share Your Thoughts

Uncertain About the Answer? Seek Clarification Here.

Understand the Explanation? Include it Here.

Q. If pKb for fluoride at 25°c is 10.83, the ionization constant of hydrofluoric acid in water at this temperature is?

Similar Questions

Explore Relevant Multiple Choice Questions (MCQs)

Q. Aqueous solution of the detergents are _________

Q. If pH of solution of NaOH is 12.0 the pH of H₂SO₄ solution of same molarity will be?

Q. Which can act as buffer?

Q. Calculate the pH of a mixture of 0.10M acetic acid and 0.20M sodium acetate. The pKₐ of acetic acid is 4.76.

Q. Calculate the pKₐ of lactic acid, given that when the concentration of lactic acid is 0.010M and the concentration of lactate is 0.087M, the pH is 4.80.

Q. Calculate the ratio of the concentrations of acetate and acetic acid required in a buffer system of pH 5.30.

Q. Assertion A: pH of a buffer solution solution does not change on dilution.
Reason R: On dilution the ration of concentration of salt and acid (or base) remains unchanged.

Q. Which of the following mixture in aqueous solution of equimolar concentration acts as a buffer solution?

Q. 1M NaCl and 1M HCl are present in an aqueous solution. The solution is ____________

Q. For an acid buffer solution the pH is 3. The pH can be increased by ____________

Q. The buffer capacity is equal to __________

Q. Buffer capacity is maximum when __________

Q. The processes i and ii are respectively.

i) CuSO₄ + 5H₂O → CuSO₄.5H₂O
ii) PCl₃ + 3H₂O → H₃PO₃ + 3HCl

Q. Which of the following is not a condensation reaction?

Q. Which of the following is the correct equation?

Q. Consider the following reaction, in the presence of light

2H₂O + 2X → O₂ + 2XH₂

Which of the following statements is true?

Q. Hydrolysis reactions are catalyzed by enzymes called ___________

Q. What does it mean when we say that water acts as a “heat buffer”?

Q. Which of the following does not react with water?

Q. What trend does the reactivity of group II elements follow with water?

Recommended Subjects

Are you eager to expand your knowledge beyond Biochemistry? We've handpicked a range of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!