A buffer is created by dissolving 0.303 moles of lactic acid and 0.197 moles of sodium lactate in 1.164 L of water. The Ka of lactic acid is 1.38 x 10-4. a) What is the pH of the buffer?

Q: A buffer consisting of lactic acid and sodium lactate has the pH = 4.30. Given that the…

A: Consider the given information is as follows;            Concentration of lactic acid = 0.12 M…

Q: A weak acid is titrated with a 0.100 M solution of NaOH. If the pH at the midpoint is 4.2, what is…

A: Given information,        Weak acid is titrated with 0.100 M solution of NaOH.         At the mid…

Q: Calculate the pH of a buffer is prepared by mixing 50.0 mL of 0.100 M HF with 25.0 mL of 0.125 M…

A: Given,  Volume of weak acid, HF = 50.0 mL  Molarity of HF = 0.100 M  Volume of salt, NaF = 25.0 mL…

Q: How many grams of solid potassium acetate should be added to 2.00 L of a 7.25×10-2 M acetic acid…

A: The explanation is given below-

Q: 3. A weak acid has a pka of 5.5. A 1.0M buffer is made from this weak acid and the pH is adjusted to…

A: Given- pKa of weak acid = 5.5 pH of Buffer of 1.0M buffer  = 6 To find - Reaction taking place…

Q: What is the pH of a buffer prepared by combining 0.36 moles of a weak acid, HA, with 0.69 moles of…

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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: What is the pH and % ionization of a buffer solution made with 0.50 M HF and 0.45 M KF? What is the…

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Q: 1. 50.0 ml of 0.1 M NaOH is added to 100.0 ml of 0.2 M HCN (Ka=6.2x10-10). What is the pH of the…

A: Since you have posted multiple questions, we are entitled to answer the first only. 1) Given:…

Q: A. What is the pH of a buffer prepared by adding 0.607 molof the weak acid HA to 0.406 mol of NaA in…

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Q: a. How many grams of dry NH4CI need to be added to 2.40 L of a 0.300 M solution of ammonia, NH3, to…

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

Q: What mass of Na2HPO4 must be added to 250. mL of 0.50 M H2PO4- to generate a buffer with a pH of…

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Q: What is the pH of a buffer made by combining 45.0 mL of 0.150 M nitrous acid and 20.0 mL of 0.175 M…

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Q: How many grams of sodium lactate, NaC3H5O3, should be added to 1.00L of 0.150M lactic acid, HC3H5O3,…

A: The Henderson Hasselbalch equation is given by pH=pKa+log[salt][acid]

Q: A buffer solution contains 1.250 mol of phenol, C6H5OH, and 0.950 mol of sodium phenoxide, C6H5ONa,…

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Q: A buffer solution contains 1.7 M acetic acid and 2.6 M sodium acetate. The Ka  of the acetic acid is…

A: Calculation of pKa of acetic acid: pKa=-log Ka=-log (1.8×10-5)=4.745

Q: How many grams of solid sodium hypochlorite should be added to 1.50 L of a 0.185 M hypochlorous acid…

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

Q: a) 1.00L of a buffer is created to be 0.100M in HOAC and 0.100M in NaOAc. What is the pH of the…

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Q: 10.0 mL of 0.80 M HF is titrated with 0.30 M NaOH. What is the pH of the solution after 10.0 mL of…

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Q: A bottle with 0.5 L of ammonia (NH3) solution that is 13.2% by mass has a density = 0.9430 g/mL. How…

A: Given, Volume of ammonia solution =0.5L Density of ammonia solution = 0.9430g/mL Mass % of ammonia…

Q: A buffer is made using 50.00 mL of 0.7000 M HA (a weak acid, Ka = 1.000 x 10-5) and 50.00 mL of…

A: GIVEN: Initial concentration of HA=0.7000 M  Initial volume of HA =50.00 mL Initial concentration of…

Q: 50.0 ml of 0.1 M NaOH is added to 100.0 ml of 0.2 M HCN (Ka=6.2x10-10). What is the pH of the…

A: A buffer solution is a mixture of weak acid and its conjugate base or weak base and it's conjugate…

Q: 3.28 g of sodium acetate (82 g/mol) added to 400 mL of acetic acid to produce a buffer solution that…

A: Given 3.28 g of sodium acetate added to 400 ml of acetic acid to make buffer of pH =5 and pKa of…

Q: What is the pH for a buffer made of 0.214 MNH 3 and 0.107 MNH 4 Cl ? K b for NH 3 is 1.8 * 10 ^ - 5…

A: Given data is as follows: The concentration of NH3 = 0.214 M The concentration of NH4Cl = 0.107 M…

Q: What is the pH of a buffer made by combining 45.0 mL of 0.34 M nitrous acid and 60.0 mL of 0.48 M…

A: pH can be determined by using the information regarding concentration of the acid and the base.  pH…

Q: An acetic acid buffer contains 0.6 M CH3COOH and 0.6 M CH3COONA. (CH3COOH has a K, 1.76 x 105.) What…

A: Given- Concentration of CH3COOH= 0.6M Concentration of CH3COONa= 0.6M Ka of CH3COOH=1.76 ×10 -5…

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: What mass (in grams) of sodium acetate (CH3COONa) must be added to 100.00 mL of a 0.127 M solution…

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Q: How many grams of solid potassium hypochlorite should be added to 0.500 L of a 0.273 M hypochlorous…

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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: What is the pH of a buffer prepared by adding 0.506 mol of the weak acid HA to 0.507 mol of NaA in…

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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 are the [H₃O⁺] and the pH of a propanoic acid–propanoate buffer that consists of 0.35 M…

A: First of all write the  equation for given compound: CH3CH2COONa→CH3CH2COO-+Na+ CH3CH2OOH=0.15…

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: 4. What is the pH of a buffer solution consisting of 0.0550 M NH3 and 0.0800 M NH. (K, for NH is 5.6…

A: Given-> [NH3] = 0.0550 M [NH4^+] = 0.0800 M Ka(NH4^+] = 5.6 × 10^ -10

Q: 1.00L of  a buffer is created to be 0.100M in HOAc and 0.100M in NaOAc. What is the pH of the…

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Q: Acetate buffers are used in biochemical studies of enzymes and other chemical components of cells to…

A: Buffers are the solutions of weak acids and their conjugate base or vice versa,  which  resist any…

Q: 4. Consider a buffer made by adding 0.050 mol NaC2H302 and 0.040 mol HC2H302 to a liter of water. a)…

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Q: 3. A buffer solution contains 0.125 moles of ammonium chloride added to 500.0 ml of 0.500 M solution…

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Q: 1. A buffer is prepared containing 1.00 molar Acetic Acid and 1.00 molar Sodium Acetate. What is its…

A: A buffer solution is made by the mixture of a weak acid with its conjugate base or by the mixture of…

Q: What is the pH of a buffer made from 0.580 mol of CH₃NH₂ (Kb = 4.4 × 10⁻⁴) and 0.230 mol of CH₃NH₃I?

A: g Given: A buffer solution is made with 0.580 mol of CH3NH2 and 0.230 mol of CH3NH3I. Kb of CH3NH2…

Q: How many grams of solid sodium fluoride should be added to 0.500 L of a 9.49x10-2 M hydrofluoric…

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Q: A buffer solution is made that is 0.376 M in HCN and 0.376 M in NACN. If Ka for HCN is 4.00 x 10-10,…

A: Hello. Since the question contains multiple parts, the first part is solved. In case the solution…

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: The Ka of hyperchlorous acid, HClO is 3.50 X 10-8. How many grams of NaClO (molar mass = 74.5…

A: 1- First calculate the concentration of NaClO :  Using the Henderson equation,  pH = pKa +…

Q: Twenty-five mL of 0.100 M lactic acid (K, = 1.4 x 10) is titrated with 0.097 M KOH. %3! a) What is…

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Q: Calculate the amount of NaOH (in grams) to be added to 0.500 L of buffer equal to 1.00 M in acetic…

A: Hello. Since more than one question has been asked, the first question shall only be answered in…

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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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.