The concentratoin of imidazole is 0.67 M. Determine the volume of 0.100M HCl needed to prepare 500mL of a buffer with pH=6.

Q: How many moles of CH₃NH₃Cl  need to be added to 200.0 mL of a 0.500 M solution of CH₃NH₂ (Kb for…

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Q: Hundred mL of 0.2 M HCl is titrated with 0.5 M NaOH, the pH when 20.0 mL of NaOH has been added is *

A: The given data contains, Volume of HCl = 100 ml. Molarity of HCl = 0.2 M. Molarity of NaOH = 0.5 M.…

Q: What volumes of 0.5 M HNO2 and 1.0 M NaNO2 should be added together to produce 1.0 L of a buffer…

A: Apply formula for acidic  buffer.

Q: Give a sentence or two on what you would do to complete the preparation of your buffer. You add 0.20…

A: Calculation of pKa of the acid: Calculation of the concentration of the conjugate base (salt):

Q: choose the best acid with which to make a buffered solution with pH =7.00. Describe how you would…

A: To identify which of the given acid will be best for preparing a buffer solution with pH 7.00.

Q: A buffer is prepared by adding 150mL of KOH 1.00M to 250mL of KH2PO4 1.00M. Calculate the moles of…

A: A buffer is prepared by adding 150mL of KOH 1.00M to 250mL of KH2PO4 1.00M. after adding HCl  the pH…

Q: Consider the bases in the table. Which base would be the best choice for preparing a pH =…

A: Henderson-Hasselbalch equation: This equation is used to calculate the pH values for the buffer. For…

Q: A 1.0-L 0.010 M buffer with pH 6.50 is given as an assignment to a group of students. Which is the…

A: Buffers are the solutions that do not change their pH to large extent when small amount of conc.…

Q: A 1.0-L 0.010 M buffer with pH 6.50 is given as an assignment to a group of students. Which is the…

A: Buffers are the solutions that resist change in pH when small amount of acid or base is added to it.

Q: Two solutions are mixed, namely 50 mL 0.2M NaOH and 50 mL 0.1M CH3COOH. Is the decision whether the…

A: A buffer solution is an aqueous solution consist of a weak acid and it's conjugate base or a weak…

Q: Which of the following are capable of forming a buffer solution? Select the single best answer.…

A: A buffer solution is made of weak acid and its conjugate base and also weak base with its…

Q: A diprotic acid, H2A, has the ionization constants: Ka1 = 1.1 × 10–3 ;Ka2 = 2.5 × 10–6. In order to…

A: for making buffer solution the value of pKa for acid should near equal to the pH value ..

Q: How much 5.50 M NaOH must be added to 430.0 mL of a buffer that is 0.0180 M acetic acid and 0.0250 M…

A: When NaOH is added to the buffer solution of acetic acid and sodium acetate, acetic acid will react…

Q: A student is trying to prepare a buffer solution with a pH of 9.00. Calculate the mass of potassium…

A: pH of a buffer is calculated using Henderson -Hasselbalch equation    pH = 9  pka = -log Ka  We…

Q: 100 mL of a natural water sample, whose pH is 6,6, requires 12,2 mL of 0,10 M HCl to end point…

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Q: A 30.00-mL sample of 0.125 M HCOOH is being titrated with 0.175 M NaOH. What is the pH after 11.2 mL…

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Q: A buffer solution is prepared by dissolving 1.50g each of benzoic acid (MM=122.1, Ka=6.3 x 10^-5),…

A: Given,  Mass of benzoic acid (HC7H5O2) = 1.50g Molar mass of benzoic acid =122.1g/mol Mass of sodium…

Q: How is the assigned buffer prepared? Write computations. Encircle the amount of solute needed for…

A: Answer : As pKa of H3PO4 are as below pKa1 =2.16 pKa2 = 7.21 pKa3 = 12.3 so we can use pKa2 to…

Q: A buffer is made by mixing 5.0 mL of 3.0 MNH,(aq) with 10 mL of 1.44 MNH,Cl(aq). What is the pH of…

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Q: How many moles of sodium hydroxide would have to be added to 125 mL of a 0.339 M hypochlorous acid…

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Q: What is the pH after 15.0 mL of 0.200 M HCl has been added to 100.0 mL of a buffer solution, X, with…

A: Given that,  Concentration of 100 mL weak base X solution = 0.70 M Moles of X in 100 mL buffer =…

Q: For each, specify B for buffer on N for not a buffer. Then specify whether the solution is acidic,…

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Q: Which of the following weak acids would be suitable for making a buffer at pH = 3.50? chlorous acid…

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Q: Describe how to prepare 1.0 L of buffer solution of pH 5.0, that can tolerate the addition of 0.3…

A: A buffer is a solution that resists the change in pH upon addition of a small amount of an acid (HA)…

Q: A chemist needs a buffer with pH 4.15. How many milliliters of pure acetic acid (density = 1.049…

A: The expression of Henderson-Hasselbalch displays that to calculate the pH of any buffer solution,…

Q: 1. When 50.00ml of 1.000M HCl is titrated with 0.750M NaOH, the pH increases. What volume of NaOH is…

A: Titration is the process that helps to determine the concentration of a substance reacting in a…

Q: A student needs to prepare a buffer solution with a pH of 4.07. Assuming a pKa of 4.59, how many mL…

A: Given : pH of buffer solution = 4.07  pKa of acid = 4.59 Concentration of NaOH = 0.1 M Concentration…

Q: You are to prepare a 500.0-mL buffer solution. ou have exactly 0.125 mol of NaO2CCO2H. Prepare a…

A: Note : both questions are interrelated.  Given: Volume of buffer solution = 500 mL , pH = 2.250 and…

Q: A buffer is prepared by adding 150mL of KOH 1.00M to 250mL of H2PO4 1.00M. Calculate the moles of…

A: In the given question we have to calculate the mole of HCl that will be addade to this system to…

Q: For a titration of 50.0 mL of 0.100 M HCl, what is the pH of the solution when 40.0 mL of 0.100 M…

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Q: In a titration, what volume (in milliliters) of 0.250M NaOH is required to neutralize 60.0 mL of…

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Q: )Find the volume and the mass 2) how many mL of 0.050M NaOH you need to add 20.0mL of this buffer to…

A: Concentration of acetic acid stock = 12.0 M Volume of buffer = 100.0 mL Concentration of buffer =…

Q: A student needs to prepare a buffer made from HF and KF with pH 3.441. If Ka for HF is 7.20 x 10-4,…

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Q: Formic acid, HFor, has a Ka value of 1.8 x 10^-4. You need to prepare a buffer having a pH of 3.25…

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Q: Calculate the pOH of 103.16 mL of a buffer initially consisting of 0.1752 M H2NCH2COOH and 0.1573 M…

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Q: Buffer : HC₂0/C₂02- You are trying to create a pH 4.35 buffer using HC2O4- and C2O4-2. The Ka of…

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Q: 2. When 30 .00 mL of 0.1011 M HCl in 50 mL of deionized water is titrated against 0.09889 M NaOH,…

A: Explanation to question 2 part 1:As we know this is a neutral reaction when strong acid reacts with…

Q: hoose a suitable acid-base pair to prepare a buffer with a pH of 4.75.

A: A buffer solution is defined as an aqueous solution consisting of a mixture of a weak acid and its…

Q: Which solution would be considered a buffer solution? 1) 0.50M NaF + 0.25M KF 2) 0.38M CH3COOH +…

A: Buffer solutions is solution in which when we add small amount of acid or base their pH remains…

Q: Twenty millimeters of 0.50N HOAc is diluted with water to 100mL, and the resulting solution is…

A: "Since, you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: 50.0 mL 0.50 M propanoic acid with 25.0 mL of 1.25 M NaOH.  Determine if it yields a buffer. If not,…

A: A buffer solution is chemical solution which resists change to its pH or acidity. It is a solution…

Q: 4) Calculate how much 1.00 M CH3COONA solution, in mL, you would need to add to 10.00 mL of a 1.00 M…

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

Q: A 550.0 mL sample of 0.18 M HClO4 is titrated with 0.27 M KOH. Determine the pH of the solution…

A: Given : Concentration of HClO4 = 0.18 M Volume of HClO4 solution = 550.0 mL = 0.550 L…

Q: Calculate the pH for a buffer with 0.20 M NH3 and 0.20 M NH4Cl, then calculate the pH after 10.0 mL…

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Q: Describe how you will prepare a phosphate buffer (250 mL, 0.0125 M) with a pH of 6.5 from a 0.500 M…

A: Topic- Preparation of Phosphate buffer solution

Q: What must be the minimum concentration of hypobromous acid in 1.00L buffer solution of a pH 8.02…

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Q: Calculate how much of each solution you need to take to prepare 1 L of buffer solution with a pH of…

A: The question deals with the concept of Buffer preparation. by adding suitable amount of sodium…

Q: 1. A chemist, , wishes to prepare 100.0 mL of a buffer of pH 10.0000 using the base methyl amine,…

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Q: 25.0 mL sample of 0.30 M HCl is titrated with 0.30 M KOH. What is the pH of the solution after 5 mL…

A: According to the question, HCl reacts with KOH . We have: 25.0 ml of 0.30 M HCl and 0.30 M KOH. The…

Q: Assuming equal concentrations of conjugate base and acid, which one of the following mixtures is…

A: We have to choose suitable buffer for given pH range.

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.