Hydrofluoric Acid, HF, is a weak acid.  Write the equation that shows a solution of HF at equilibrium.  Name each reactant and product.         Write the equilibrium expression (Ka = …) for a solution of HF.           Would you expect the Ka value for the HF solution to be less than, greater than or equal to 1?  Why?  Explain.

Q: You can find the Ka of a strong acid by running a titration curve.

A: The use of dissociation constant is to measure how well an acid or a base is been dissociated. For…

Q: You are given three unknown solutions. One is strongly acidic (pH below 1), one is neutral, and one…

A: pH indicators are added in small amount to solutions so that they can indicate their pH by showing…

Q: Calculate the pH of a solution containing 0.30 M HF and 0.30 M NaF. The Ka for HF is 7.2×10-4. pH =

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Q: The weak acid HF can form a buffer solution. If a little extra H⁺ acid is added, which ion will…

A: Given: Buffer solution of HF. And a little amount of extra H+ is added.

Q: A solution made by mixing 125.00 mL of 0.950 M HOCI with 50.00 mL of 0.800 M NaOH. How can I find…

A: The objective of this question is to find the pH of a solution made by mixing 125.00 mL of 0.950 M…

Q: Salts are composed of both cations and anions, both of which can potentially affect pH. Which of the…

A: When  a salt is  added to water  it breaks into cations and anions or nothing and gives hydroxide…

Q: A chemist titrates 230.0 mL of a 0.8865 M sodium hydroxide (NaOH) solution with 0.6960 M HBr…

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Q: 1.33 mol HF is added to enough 0.434-M NaF solution to give a final volume of 1.7 L. What is the pH…

A: The pH of this buffer solution can be determined by using Handersson hasselbalch equation for weak…

Q: A solution is prepared by dissolving 0.89 mol of a weak base in 1.00 L of water. The resulting pH at…

A: Dissociation of a weak base and pOH calculation

Q: of

A: In actual ICE box, for Equilibrium Reaction. In my according there is no need to used ICE box…

Q: What is the volume of 0.20 M NaOH that would be needed to reach the equivalence point with 30.0 mL…

A: Equivalence point is defined as the point at which the amount of titrant is added to the analyte…

Q: A student forgot to label two bottles of acid. One contained HCl and the other HClO. What test could…

A: the answer is B) simply measure and compare the pH of the two and A) measure the pH before and after…

Q: What is the pH of the buffer solution that results from the mixing of 85 mL of 0.35M HCI with 85 mL…

A: Given,Molarity of HCl = 0.35 Mvolume of HCl = 85 mLMolarity of NaCNO = 0.70 Mvolume of NaCNO = 85…

Q: Look at Figure 14.19 in Section 14.7 in your textbook to answer this question. Suppose you have a…

A: No. of mmoles of HCl= 10 no. of mmoles of KOH = 10 so this is an example of a neutralization…

Q: A chemist titrates 60.0 mL of a 0.8409M sodium hydroxide (NaOH) solution with 0.1926M HCl solution…

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Q: In the lab, you perform an experiment in which you add HCIO4 and a beaker containing NH3. What will…

A: Equivalence point is the  point in titration at which the amount of titrant added is just enough to…

Q: True or False: At the equivalence point in a titration, the # moles acid = # moles base.

A: the point at which enough acid  and base to neutralize the solution called as equivalence point   .

Q: How does the buffer solution absorb the added H+ and OH- to make the pH change very small?

A: A buffer can be acidic or basic in nature. A buffer that contains a weak acid with its conjugate…

Q: Adding 100. ml of 0.100 M NaOH to 100. ml of 0.175 M NH4Cl, calculate the pH for the solution. (Ka…

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Q: Calculate the change in pH after adding 4.5 mL of 0.40 M HCl to 1.0 L of pure water. water pH…

A: We are given that 4.5 mL of 0.40 M HCl is added to 1.0 L pure water, we need to calculate the change…

Q: Consider the weak base, hydroxylamine (HO-NH2), whose K is 1.1 x 10-8. a. Write the equation for the…

A: a ) Hydroxyl amine is a weak base , so it gain H+ from water to give hydroxide ion.  b ) Kb is the…

Q: Write the Ka expression for an aqueous solution of hydrofluoric acid: (Note that either the…

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Q: You make 1.00 L of a buffered solution (pH solutions of each component of the buffered solution.…

A: A buffer solution can be made using a weak acid and the conjugate base of the weak acid. For…

Q: What is the theoretical pH of 0.10 M Sodium Acetate?

A: pH is a quantitative unit of measure that describes the degree of acidity or basicity of a…

Q: B) 100 mL of O.1 M HCI is titrated with 0.50M NAOH, Calculate the pH when 8.0 mL of NaOH has been…

A: The question is based on the concept of titrations. we have been given solution of hydrochloric acid…

Q: If you were to make a 1L sodium hydroxide solution from 1.5 g of NaOH, what would be the pH of a…

A: pH of a solution is the negative logarithm of hydrogen ion concentration.  pH = -log[H+]  pOH = -log…

Q: In general, adding a strong acid or a strong base to a buffer solution _________ neutralizes the…

A: Buffer solution is the solution which resist change in pH on addition of small amount of acid or…

Q: Assuming the final solution will be diluted to 1.00 L , how much more HCl should you add to achieve…

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Q: In a titration experiment, 40.0 mL of 0.100 M HCI is titrated with 0.100 M NaOH solution. Determine…

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Q: A chemist titrates 230.0 mL of a 0.8865 M sodium hydroxide (NaOH) solution with 0.6960 M HBr…

A: Volume of NaOH(V1) = 230.0 ml = 0.230 L (1L = 1000 ml) Molarity of NaOH (M1) = 0.8865 M Molarity of…

Q: If you have 500 ml of .15M Formic Acid, what is the pH of this solution? What is the pKa? How many…

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.