Adding as little as 0.1 mL of concentrated HCl to a liter of H2O shifts the pH from 7.0 to 3.0. Adding the same amount of HCl to a liter of a solution that 0.1 M in acetic acid and 0.1 M in sodium acetate, however, results in a negligible change in pH. Why do these two solutions respond so differently to the addition of HCl?

Q: Calculate the change in pH when 51.0 mL of a 0.740 M  solution of NaOH is added to 1.00 L of a…

A: Given data Molarity of NaOH = 0.740 M Molarity of sodium acetate = 1 M Molarity of acetic acid = 1 M…

Q: What change will be caused by addition of a small amount of Ba(OH) 2 to a solution containing CN-…

A: The solution is- H+(aq)+CN-(aq)↔HCN(aq) here Hydrogen ions are reacting with cyanide ions to form…

Q: Calculate the pH of the solution resulting from the addition of 75.0 mL of 0.15 M KOH to 35.0 mL of…

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Q: the solutions are additive and that Kp = 4.4 x 104 for methylamine.

A: The question is based on the concept of EQUILIBRIUM. we have to calculate pH of the solution…

Q: A 0.200 M solution of a weak base has a pH of 9.00. What is the base hydrolysis constant, Kp, for…

A: Given: pH of solution= 9 Concentration of weak base = 0.2 M

Q: Which of the fellowing aqueous solutions are good buffer systems? O0.38 M hypochlorous acid + 0.25 M…

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Q: Calculate the change in pH when 8.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution…

A: we need to calculate the change in pH for the given solutions

Q: How many g of sodium formate should be added to 250 ml of 0.2 M hydrochloric acid solution to obtain…

A: Given,  Volume of HCl = 250 mL  Molarity of HCl = 0.2 M  pH = 4.3  Mass of sodium formate in g = ?

Q: Calculate the pH of a buffer prepared by adding 0.44 moles of acetic acid and 0.25 moles of acetate…

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Q: The table shows respective color change when a universal indicator is added to the clear solutions.…

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Q: To 1.0 L of a 0.36 M solution of HClO2 is added 0.19 mol of NaClO. Calculate the [HClO2][HClO2] at…

A: Solution              Given 1.0 L of a 0.36 M solution of HClO2 is added 0.19 mol of NaClO.…

Q: An analytical chemist is titrating 1/8.6 mL of a 0.7500M solution of ammonia (NH3) with a 0.4800M…

A: Given -> Volume of NH3 = 178.6 ml Molarity of NH3 = 0.7500 M Volume of HNO3 = 142.1 ml Molarity…

Q: An aqueous solution contains 0.25 M hydrofluoric acid. One Liter of this solution could be converted…

A: A buffer solution can be created by mixing acid and salt of conjugate base of the acid.

Q: We have seen an introductory definition of an acid: An acid is a compound that reacts with water and…

A: Various definitions of acids and bases have been proposed from time to time. According to classical…

Q: Calculate the change in pH when 43.0 mL of a 0.760 M  solution of NaOH is added to 1.00 L of a…

A: The volume of 43 mL is equivalent to 0.043 L. To determine the number of moles (n) of NaOH in the…

Q: The K, of phosphoric acid is 6.92 x 103. Calculate the pH of a buffer solution that is 0.44 M…

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Q: 50.0 ml of 0.250M hydrofluoric acid, HF, is titrated with 0.400M sodium hydroxide, NaOH. Calculate…

A: To calculate the pH of the solution after the addition of 20.0 ml of 0.400M NaOH solution to 50.0 ml…

Q: The pK, of hypochlorous acid is 7.530. A 56.0 mL solution of 0.121 M sodium hypochlorite (NaOCI) is…

A: Answer: In this question we have to calculate the pH of three types of solutions at three different…

Q: Calculate the change in pH when 59.0 mL of a 0.740 M solution of NaOH is added to 1.00 L of a…

A: pH is used to determine the concentration of hydronium ion.

Q: Calculate the pH for each of the cases in the titration of 35.0 mL of 0.230 M NaOH(aq) with 0.230 M…

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Q: At 22 °C, an excess amount of a generic metal hydroxide, ,M(OH)2, is mixed with pure water. The…

A: At 22 °C, an excess amount of a generic metal hydroxide, M(OH)2, is mixed with pure water. The…

Q: Which of the following aqueous solutions are good buffer systems? O 0.38 M barium iodide + 0.27 M…

A: Buffer solution formed by combination of weak acid or base with salt of weak acid or base…

Q: What is the pH of a buffer solution containing 1.0 M hypochlorous acid (HClO, KA = 3.0 × 10^-8) and…

A: We can use Henderson-Hasselbalch equation which for a buffer solution that consists of weak acid and…

Q: 4. Consider the titration of 30.0 mL of 0.400 M ethylamine with 0.300 M HBr. Calculate the pH of the…

A: Ethyl amine is a weak base it reacts with HCl to make a buffer solution.

Q: An analytical chemist is titrating 110.9 mL of a 1.100M solution of nitrous acid (HNO₂) with a…

A: First we need to calculate moles of both HNO2 and NaOH.  Then we have to draw an ICE table for…

Q: An industrial chemist studying bleaching and sterilizing prepares several hypochlorite buffers.…

A: Given : a buffer solution with  1) concentration of weak acid i.e HClO = 0.200 M 2) concentration of…

Q: An analytical chemist is titrating 129.5 mL of a 0.2500M solution of nitrous acid (HNO₂) with a…

A: Well, we will first calculate the millimoles of both acid and base to determine the excess reagent.…

Q: Consider a 50.0 mL sample of a solution composed of 0.25 M HNO2 and 0.25 M KNO2. Find the pH of the…

A: A buffer is a solution which resists any change in pH on adding a small amount of acid or base.  It…

Q: A solution is formed by adding 3.20 grams of solid sodium hypochlorite, NaClO, to 500.0 ml of…

A: Answer: Solution will be basic due to hydrolysis of hypochlorite ion because it is the conjugate…

Q: Which of the following aqueous solutions are good buffer systems? O0.29 M ammonium nitrate + 0.31 M…

A: Buffer solution implies presence of either a weak acid or weak base and its form salt.  On the off…

Q: 1.00 liter solution contains 0.35 M hypochlorous acid and 0.26 M potassium hypochlorite. If 30.0 mL…

A: According to the question, a 1.00 liter solution contains 0.35 M hypochlorous acid and 0.26 M…

Q: 10.00 mL of 0.45 M NaOH is added to 9.00 mL of 1.00 M HCOOH. What is the molar concentration of…

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Q: Which of the following aqueous solutions are good buffer systems? O 0.22 M perchloric acid +0.24 M…

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Q: 0.0500 M HF (Ka= 7.20 x 10–4)  determine the equilibrium molar concentration of H3O+ and…

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Q: A solution is prepared that is initially 0.46M in benzoic acid (HC H₂CO₂) and 0.12M in sodium…

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Q: A 1.00 liter solution contains 0.31 M hydrofluoric acid and 0.23 M potassium fluoride. If 25 mL of…

A: According to the question, a 1.00 liter solution contains 0.31 M hydrofluoric acid and 0.23 M…

Q: pH

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Q: 11.An acid-base equilibrium system is created by dissolving 0.20mol CH3COOH in water and diluting…

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Q: Which of the following aqueous solutions are good buffer systems? O 0.17 M acetic acid + 0.21 M…

A: The question is based on the concept of buffer solution.   A buffer is a solution which resist any…

Q: Calculate the pH of a solution that is 0.60 M HF and 1.00 M KF.

A: Given that, pka of HF=3.1 [HF]=0.60 M [KF]=1.00M pH=? By using Hendersonson-Hassel Baltch equatjon,…

Q: An analytical chemist is titrating 159.5 mL of a 1.200 M solution of nitrous acid (HNO,) with a…

A: The is a neutralization reaction which takes place as,…

Q: The pH of a bicarbonate-carbonic acid buffer is 6.18. Calculate the ratio of the concentration of…

A: The ratio of [H2CO3] to that of [HCO3-] is determined by using Henderson-Hasselbalch equation.

Q: Determine the pH and pOH of 0.25 L of a solution that is 0.0206 M  boric acid and 0.0241 M  sodium…

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Q: The pK, of hypochlorous acid is 7.530. A 52.0 mL solution of 0.148 M sodium hypochlorite (NAOCI) is…

A: V of NaOCl = 52.0 ml, Molarity of NaOCl = 0.148 M  mmoles of NaOCl = 52 x 0.148   mmoles of NaOCl =…

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.