What is the component concentration ratio, [CH₃COO⁻]/[CH₃COOH], of a buffer that has a pH of 4.39 (Kₐ of CH₃COOH =1.8X10⁻⁵)?

Q: COnenta uonapa 2. Acetic acid and a salt containing its conjugate base, such as sodium acetate, form…

A: Solutions that resist a change in the pH on addition of an acid or a base is called buffer…

Q: 4. Formic acid, HFor, has a K value of 1.8 x 10-4. You need to prepare 150 mL of a buffer hav- ing a…

A: Buffer are the solution which are made on mixing weak acid or weak base with the salt of its…

Q: What is the pH of a benzoic acid/ benzoate buffer that is made by combining 0.3275 g of a benzoic…

A: The question is based on the concept of buffer solution. we have been given a buffer made up of…

Q: Which of the following acids should be used to prepare a buffer with a pH of 3.4? CH3COОН, Ка - 1.8…

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Q: Does the 0.100 came from the conversion of 100 mL? Or is it from the given 0.100 M buffer?

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Q: What are the [H₃O⁺] and the pH of a buffer that consists of 0.20 M HF and 0.25 M KF (Kₐ of HF…

A: pH is also known as potential of hydronium ion which we determine usually for a solution of…

Q: buffer

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Q: A 350.0-mL buffer solution is 0.150 M in HF and 0.150 M in NaF. What mass of NaOH can this buffer…

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Q: What is the pH of a buffer made from 0.580 mol of CH₃NH₂ (Kb = 4.4 × 10⁻⁴) and 0.100 mol of CH₃NH₃I?

A: Given- Moles of CH3NH2=0.580mol Moles of CH3NH3I=0.100mol Kb=4.4×10-4

Q: What A chemistry graduate student is given 500. mL of a 1.50M trimethylamine (CH, N solution.…

A: Given: The volume of trimethylamine solution = 500 mL = 0.5 L The conc. of this solution = 1.50 M…

Q: How many grams of sodium hypochlorite, NACIO, need to be added to 227 mL of a 0.185 M solution of…

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Q: grams

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Q: Suppose you wanted to make a buffer of exactly pHpH 7.00 using KH2PO4KH2PO4 and Na2HPO4Na2HPO4. If…

A: Henderson – Hasselbalch equation can be used here, i.e pH=pKₐ+log₁₀([A⁻]/[HA])

Q: 3.  What is the pH of a buffer made by mixing 1.00 L of 0.020 M benzoic acid, HC7H5O2, with 3.00 L…

A: Given, the molarity of benzoic acid = 0.020 MMolarity of sodium benzoate = 0.060 MThe total volume…

Q: 4. Formic acid, HFor, has a K value of 1.8 x 104. You need to prepare 125 mL of a buffer hav- ing a…

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Q: The pKa of acetic acid, HC2H3O2, is 4.74. What is the pH of a buffer in which [HC2H3O2] = 0.20 M and…

A: Solution, which resist in pH change value upon addition of small amount of strong acid or base (less…

Q: A benzoic acid-sodium benzoate buffer is prepared by dissolving a certain amount of sodium benzoate,…

A: A buffer solution is an aqueous solution. It consist of a mixture of a weak acid and its conjugate…

Q: What relative masses of dimethyl amine and dimethyl ammonium chloride do you need to prepare a…

A: pH + pOH = 14 pOH = pKb + log [salt]/[base]

Q: Calculate the pH of the following buffers containing; 2.95M HC2H3O2 and 1.5M NaC2H3O2 ka = 1.8X105…

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

Q: A buffer system is prepared that is 0.020 M in NH3 and 0.030M in NH4*. What is the concentration, in…

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Q: A 350.0-mL buffer solution is 0.150 M in HF and 0.150 M in NaF. What mass of NaOH can this buffer…

A: For HF,

Q: What is the component concentration ratio, [BrO−]/[HBrO], of a buffer that has a pH of 7.89? (   Ka…

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Q: You need to make a buffer that contains 8% (w/v) of dihydrate calcium chloride.  How much ANHYDROUS…

A: Given, weight by volume % of the calcium chloride[CaCl2.2H2O] buffer = 8% Volume of buffer = 3.5 L

Q: A buffer contains a weak acid, HA, and its conjugatebase. The weak acid has a pKa of 4.5, and the…

A: The pH of a given solution can be termed as a measure of its basicity or acidity. It is a measure of…

Q: How many milllilitres of HCl should you add to 250.00mL of 13.4 x 105 ppm sodium maleate to produce…

A: We have to find the volume of HCl such that we get pH = 3.37  Given 250.00mL of 13.4 x 10⁵ ppm…

Q: There is a 0.100 M solution of CH3CO2H and NaOH. Please explain in detail whether a buffer is formed…

A: Buffer solution Buffer solution is an aqueous solution containing a weak acid and conjugate base of…

Q: How many grams of Na2CO3 must you add to 1.5 L of freshly prepared 0.2 M NaHCO3 to make the buffer…

A: Given,  Volume of the buffer in L = 1.5 L  Molarity of NaHCO3 or HCO3- = 0.2 M  pH of the buffer =…

Q: Which of the following acid/base pairs would be best for making a buffer with a pH of 3.50? H2CO3…

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Q: What is the component concentration ratio, [BrO⁻]/[HBrO],of a buffer that has a pH of 7.95 (Kₐ of…

A: Given, pH = 7.95 Ka of HBrO = 2.3 × 10-9 Henderson-Hasselbalch equation of a buffer: pH = pKa + log…

Q: what is the pH of a buffer that is 0.260 M in a weak acid and 0.250M in the acids conjugate base?…

A: Given Buffer of 0.260 M in a weak acid and 0.250M in the acids conjugate base with pKa for the acid…

Q: How many grams of solid calcium cyanide, Ca(CN)₂ must be added to 200.0 ml of 0.370M hydrocyanic…

A: Ca(CN)2+H+ ---->HCN+ Ca2+   pH =pKa+log [CN-]/HCN

Q: You are making a buffer solution in the lab by combining the weak acid H2PO4- with its conjugate…

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Q: What is the pH of a buffer that contains 0.250 mol of CH3NH2 and 0.450 mole of CH3NH3CI? Kb for…

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Q: What ratio of sodium benzoate, C6H5CO2Na, to benzoic acid, C6H5CO2H, do you need to prepare a buffer…

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Q: 3. What is the pH of a solution that contains 20 grams of sodium hydroxide (NaOH) dissolved in 5.5…

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Q: What is the component concentration ratio, [NH3]/[NH4 + ] of a buffer that has a pH of 9.18?

A: pH of buffer solution is calculated by using Henderson Hassel balch equation

Q: What ratio of CH3NH2 to CH3NH;* is needed to prepare a pH 10.20 buffer? (Kb for CH;NH2 is 4.4 ×…

A: The pH of a buffer solution is calculated using the Henderson Hasselbalsch equation as written…

Q: Classify these salts according to Strength and Role in the Buffer system 1. Barium chloride (BaCl2)…

A: Buffer system is a unique system which is resistant to pH change upon the addition of a small amount…

Q: What is a pH of a buffer that is 0.150 M dimethylamine and 0.100 M dimethylammonium chloride at 25…

A: Given: The concentration of dimethylamine, [Base]=0.150 M The concentration of dimethylammonium…

Q: What is the pOH of a buffer that consists of 0.275 M methylamine CH3NH2 and 0.461 M methylammonium…

A: Concentration of methylamine [CH3NH2 ] = 0.275 M Concentration of methylammonium chloride [CH3NH3Cl…

Q: What is the difference between buffers with high and low ca-pacities? Will adding 0.01 mol of HCl…

A: A buffer with high capacity can resist the change in pH of the solution by the addition of…

Q: What mass (in g) of ammonium chloride (NH4Cl) should be added to 2.60 L of a 0.155 M NH3 to obtain a…

A: Buffer solution is made of weak acid or base and their corresponding conjugate base or acid…

Q: Calculate the concentration of buffer components present in 280.00 mL of a buffer solution that…

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Q: What is the component concentration ration, [Pr]/[HPr], of a buffer that has a pH of 5.44 (Ka of HPr…

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Q: Calculate the pH of a buffer that contains 0.270 M hydrofluoric acid (HF) and 0.180 M cesium…

A: • According to Henderson Hassel batch Equation    PH = PKa + log SaltAcid• PKa = -log Ka

Q: What is the component concentration ratio, [Pr−]/[HPr], of a buffer that has a pH of 4.85?(Ka of HPr…

A: pH is defined as negative logarithm logarithm of hydrogen ions.

Q: How many grams of NH4CI would have to be added to 250.0 mL of a 0.420 M NH3 solution to prepare a…

A: The minimum concentration of NH4Cl that must be present in the solution to have a pH of 10 is;…

Q: What mass ratio of NaCN to acid is needed to prepare a buffer with HCN for a pH of 9.0? HCN pKa =…

A: Buffers find variety of uses in chemical reactions that require constant pH. When they are added in…