If a buffer solution is 0.120 M in a weak base (Kp = 7.2 x 10-5) and 0.460 M in its conjugate acid, what is the pH?

Q: 1. Why was it important to use "flat" soft drinks for your titrations? Would your calculations of…

A: Here we are titrating soft drink which contains acids with strong base, NaOH to find the citric acid…

Q: What is the pH of a solution that contains 0.12 M HC2H3O2 and 0.29 M C2H3O2? Use Kb = 5.6 x 10-10…

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Q: A solution containing a mixture of 0.86 M  C2H5NH2 and a salt that has a common positive ion has a…

A: The dissociation reaction of C2H5NH2 is given by  C2H5NH2 (aq) + H2O (l) -------> C2H5NH3+ (aq) +…

Q: What is the molar solubility of Mg(OH)2 in a basic solution with a pH of 12.00? Ksp for Mg(OH)2 is…

A: Given that: pH = 12 Ksp for Mg(OH)2 = 5.61×10-12 To find, molar solubility of Mg(OH)2?

Q: Methodolody: (Include a short summary of the overall experimental plan you are going to run. You may…

A: Solution - According to the question - Given - we use Henderson Hasselbach equation, pH = pKa + log…

Q: Calculate the pH of a solution that is 0.200 M in NH3 and 0.300 M in NH4Cl. Calculate the pH change…

A: Answer: Henderson-hasslebalch equation will be used to calculate the pH of basic buffer solution and…

Q: ksp = 11.8 x 10-11 at 25 degree C.  A saturated solution has a pH of 10.5 and the Mg2+…

A: At pH 9 the OH- ion concentration is, pOH = 14 -pH         = 14- 9         = 5 [OH-] = 10(-5) [OH-]…

Q: Solve the following. Show the complete solution. 1.a. What is the pH of 50.00 mL buffer solution…

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Q: Consider the titration of 300.0 mL of 0.450  M NH 3 ( K b = 1.8  × 10 –5) with 0.450  M HNO 3. How…

A: Given: Concentration of NH3 = 0.450 M Volume of NH3 solution = 300.0 mL And concentration of HNO3 =…

Q: olution is made by mixing 185 mL of 0.100 M formic acid (Ka = 1.7 x 10-4 ) with 190. mL of 0.100 M…

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Q: Calculate the pH of the solution resulting from 2.10 x 10-2 mol HCl being added to 250.0 ml of a…

A: As ,  we know  Molarity = moles / Volume ( in L )  So, moles are calculated as : Moles = Molarity ×…

Q: Cacodylic acid (dimethylarsinic acid, HAsO2(CH3)2) is a common buffer used in biology to prepare and…

A: The pH of a buffer solution can be calculated by using Handerson equation.  The given example of an…

Q: Write the Henderson-Hasselbalch equation for a propanoic acid solution (CH,CH, CO,H, pKa = 4.874).…

A: The given pKa value for a propanoic acid solution is 4.874. Henderson-Hasselblach equation is given,…

Q: 11-8. What is the pH at the equivalence point when 0.100 M hydroxyacetic acid is titrated with 0.050…

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Q: What is the pH of a buffer solution that is 0.50 M in formic acid (HCHO2) and 1.0 M in sodium…

A: The given problem can be solved by using Henderson-Hasselbalch equation given below as; pH=pKa + log…

Q: Calculate the pH at the equivalence point of 25.0 mL solution of ascorbic acid, titrated with 45.3…

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Q: A theoretical weak acid has a Ka of 2.62x10-5. Find the pH of this acid when its concentration is…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: 1. 30.00 mL of 0.085 M Hydrofluoric acid (HF; Ka = 6.8 x 10-4) is titrated with 0.102 M NaOH. What…

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Q: Q5) Choose two of the following branches:- 1-What is the pH of a 0.100 M solution of sodium acetate?…

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Q: 1. Predict if an aqueous solution of 0.5 M sodium cyanide, NaCN, would be acidic, neutral, or basic…

A: Hydrolysis is a reverse process of neutralisation, that is, in hydrolysis a given salt reacts with…

Q: A theoretical weak acid has a Ka of 2.62x10-5. Find the pH of this acid when its concentration is…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: lactic acid builds up in the muscles when one exercises. 200 ml of .4 m lactic acid was reacted with…

A: Lactic acid is an acid which reacts with NaOH (a base) to form a salt and water. This type of…

Q: Which weak acid would be best to use when preparing a buffer solution with a pH of 8.40? an acid…

A: Buffer solutions resist any changes in pH upon the addition of an acid or base to the solution. The…

Q: Calculate the % change in pH  when 3.096 g of solid NaOH (39.997 g/mol) is added to a 318 mL buffer…

A: The pH of buffer can be calculated by the Henderson-Hasselbalch equation. pH=pKa+logA-HApKa=acidity…

Q: The Ksp value for Al(OH)3 is 3.0 x 1034. Part 1 You answered correctly! Move on to the next part.…

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Q: You have 50.0 mL of an aqueous solution of 0.25 M lactic acid, a monoprotic acid with Ka = 8.4 x…

A: pKa of the solution can be calculated as follows: Calculation of no. of mol of Lactic acid(HC3H5O3…

Q: 3. 25.0mL of 0.05M Ba(OH)2 neutralised 40.0mL of nitric acid. Determine the concentration of the…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: Calculate the % relative error in hydronium ion concentration by using concentrations instead of…

A: Given Ka, Acetic Acid → 1.75×10-5 Ammonium ions → 5.70×10-10 Chloroacetic Acid → 1.36×10-3…

Q: 27 mL of 0.08 M acetic acid solution is titrated with 0.10 M NaOH.  What is the pH after 22 mL of…

A: No of moles of CH3COOH = M × V                                               = 0.08 × 27 mL= 2.16…

Q: A theoretical weak acid has a Ka of 2.62x10-5. Find the pH of this acid when its concentration is…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: The Answer is C. I just need a proper explanation

A: The structure of amino acid is shown in the given question, this amino acids are gives a zwitterion…

Q: The graph shows the titration of a polyprotic weak acid with a strong base. Label the following…

A: The correct answer of fill is given below:

Q: A 200mL solution of 0.3 M weak acid is titrated with 40 mL of 1.5 M NaOH. If the Ka of the acid is…

A: Number of mmoles of HA = Molarity x volume (mL) = 0.3 x 200 = 60 mmoles Number of moles of NaOH =…

Q: a student mixes the following solutiond. what is the ph of the solution?   .2 L of .1 M Ca(OH)2 .3…

A: pH of a solution is given by the following formula. pH=-log[H+] H+ and OH- ions neutralise each…

Q: The hydronium ion concentration in pure water at some temperature other than 25 °C is 2.43 x 10-6.…

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Q: Add 20 cm3 of 0.4 M sodium-formate solution to 20 cm3 of 0.6 M formic acid solution. What is the pH…

A: Value of pH is used to measure the acidity or basicity of a solution. At room temperature, value of…

Q: Predict if an aqueous solution of 0.5 M sodium cyanide, NaCN, would be acidic, neutral, or basic at…

A: The questions are based on the concept of equilibrium. we have been given sodium cyanide which is…

Q: What is the pH of a saturated solution of magnesium hydroxide (the active ingredient in the antacid…

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Q: If you mix 125.0  mL of 0.50 M CH3CO2H with 75.0 mL of 0.83 M NaOH, what is the pH of the resulting…

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Q: 2- A sample of an acid 2.4 g dissolved in 100 ml. water. This sample was titrated with 40 ml sodium…

A: An acid- base titration is a quantitative analysis which is done to determine the concentration of…

Q: FRQ1: Consider the titration of 25.00 ml of 0.08 M of a weak acid, HA, with 0.125 M NAOH. Calculate…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: Calculate the pH of a buffer solution that contains 0.25 M hypochlorous acid (HCIO) and 0.15 M…

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Q: Propanoic acid has a Ka=1.3x10-5. The titration starts with 40.00 mL of 0.1000 M propanoic acid…

A: Titration is a quantitative analysis in which the concentration of unknown solution can be find by…

Q: Idk how to solve this. Can someone help me? I'm also super confused on how to convert the L thing to…

A: Magnesium hydroxide Mg(OH)2 is sparingly soluble substance in water. and   The relation between pH…

Q: Suppose you have 150 mL of a buffer containing 0.100 M acetic acid and 0.0500 M sodium acetate.…

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Q: A 25.0 mL solution of quinine was titrated with 1.00 M hydrochloric acid, HCl. It was found that the…

A: The question is based on the concept of titrations. we are titrating  a weak  base quinine with a…

Q: 3.5 x 10-8) What is the pH at the equivalence point in the titration of 100.0 mL of 0.0500 M HOCI…

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Q: A buffer is prepared containing 1.00 M acetic acid and 1.00 M sodium acetate. What is its pH? The Ka…

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