3.28 g of sodium acetate (82 g/mol) added to 400 mL of acetic acid to produce a buffer solution that has a pH of 5.0, pka CH3COOH = 4.7. Calculate the molar concentrations of %3D acetic acid?

Q: A buffer solution is 0.409 M in H2SO3 and 0.311 M in KHSO3. If Kal for H2SO3 is 1.7 x 10-2, what is…

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Q: In a titration experiment of a 25.00 ml of 0.100 M CH3CO2H with 0.100M NaOH, 12.50 mL of NaOH were…

A: We have 25 mL of 0.1 M acetic acid and 0.1 M 12.5 ml NaOH , we have to calculate the pH of resulting…

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

A: Moles of sodium acetate = mass/molar mass  = 3.28/82 = 0.04 mol Let molarity of acetic acid = M…

Q: Acetic acid is a weak monoprotic acid with K, = 1.77 x 10. NaOH(s) was gradually added to 1.00 L of…

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Q: Calculate the pH value when titrated between 25 ml of weak acid HA concentration of 0.3 (104 x 6.6…

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Q: Consider a buffer made by adding 132.8 g of NaC₇H₅O₂ to 300.0 mL of 2.31 M HC₇H₅O₂ (Ka = 6.3 x 10⁻⁵)…

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Q: A buffer is prepared by adding 2.50g of lithium fluoride to 125 mL of 0.648M hydrofluoric acid.  You…

A: Buffer Solution It is a mixture of weak acid or base with their corresponding conjugate acid or…

Q: If 24.6 mL of 0.053 M hydrochloric acid (HCI) solution is added to 22 mL of 0.144 M ammonia (NH3)…

A: Given : Concentration of HCl = 0.053 M Volume of HCl solution added = 24.6 mL = 0.0246 L…

Q: You mix 15.0 mL of 0.200 M NH4Cl with 15.0 mL of 0.400 M NH3. What is the pH of the resulting…

A: Given: Concentration of NH4Cl = 0.200 M Volume of NH4Cl solution = 15.0 mL = 0.015 L…

Q: What is the pH of a buffer made from 0.580 mol of CH₃NH₂ (Kb = 4.4 × 10⁻⁴) and 0.180 mol of CH₃NH₃I?

A: Concentration of CH3NH2 = 0.580 Concentration of  CH₃NH₃I = 0.189 Kb = 4.4 × 10-4  pH = ?

Q: Consider a buffer made by adding 42.3 g of (CH3)2NH2I to 250.0 mL of 1.42 M (CH:)»NH (Kb = 5.4 x 10…

A: A buffer is made of a weak base and salt of that base. When an acid is added to the buffer, the base…

Q: Consider the reaction of a 20.0 mL of 0.220 M C̟H̟NHCI (Ka = 5.9 x 10*) with 12.0 mL of 0.241 M…

A: Given molarity of C5H5NHCl or C5H5NH+ = 0.220 M  Volume of C5H5NHCl solution = 20.0 mL = 0.020 L…

Q: 4. How many grams of sodium lactate, NAC3H5O3, should be added to 1.0OL of 0.150M lactic acid,…

A: To calculate the grams of sodium lactate , we would use Henderson Hasselbalch equation.

Q: A hydrochloric acid solution is standardized by titrating 0.2329 g of primary standard sodium…

A: Interpretation- Molarity of HCl. Concept information- Molarity - ratio of number of moles of solute…

Q: You are running a titration. You have placed 100.0 mL of 0.200 M chlorous acid, HCIO2, in a flask…

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

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Q: What is the final pH when 0.032 mol of NaOH is added to 0.422 L of a solution containing 0.428M…

A: pH = pKa + log[C3H5O2-]/[HC3H5O2] Number of mol = Molarity x Volume (L)

Q: the acidity function when adding 5 ml of NaOH Calculate the pH value when titrated between 25 ml of…

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Q: The stockroom contains 1M NaAc (Sodium acetate), 1M HAc (Acetic acid), distilled water and strong…

A: ANSWER : Initial pH = 4.75   ,    pKa (CH3COOH)  = 4.75  We know that pH =  pKa +…

Q: 1. Acetate buffers are used in biochemical studies of enzymes and other chemical components of cells…

A: The Ka value of acetic acid is 1.8 × 10-5.pKa = -log(Ka) = -log(1.8 × 10-5) = 4.74.concentration of…

Q: Consider a buffer made of carbonic acid H2C03 and its conjugate base NaHCO3 with a pH of 6.50. (Ka…

A: The Henderson- Hasselbalch equation provides a relationship between the pH of acid(in aqueous…

Q: What volume of 0.110 M Hydrochloric acid needs to be added to 30 mL of 0.100 M ammonia to make a…

A: We know the Henderson-Hasselback equation is, pH=pKa +salt/acid Given Value;   The concentration of…

Q: A solution is prepared by dissolving 1.800 g of sodium acetate (CH3COONa) into 100.00 mL of a 0.180…

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Q: Consider a buffer made by adding 43.1 g of (CH:):NH21 to 250.0 mL of 1.42 M (CH.):NH (Kb = 5.4 x…

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Q: How many grams of dry NH4Cl nned to be added to 2.50 L of a 0.200 M solution of ammonia, NH3, to…

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Q: Suppose you have just added 100.0 ml of a solution containing 0.5000 moles of acetic acid per liter…

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Q: Consider exactly one litre of a propanoic acid buffer solution, containing 0.600 M C3H50OH and 0.252…

A: Buffer solution is a combination  of weak acid with its conjugate base.

Q: What mass (in g) of sodium formate, HCOONA, must be added to 10.0 L of a 0.483 Maqueous solution of…

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Q: 1. Calculate the ratio of [CH:COOHJ/NaCH:COO] to give a buffer solution at pH 5. (Ka of acetic acid…

A: We want to solved just first one question- 1  1- First we calculate the pKa value :  pKa = -log(Ka)…

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: Consider the reaction of a 20.0 mL of 0.220 M C₅H₅NHCl (Ka = 5.9 x 10⁻⁶) with 12.0 mL of 0.241 M…

A: When CsOH ( a base ) is added to C5H5NHCl ,  It will act as an acid and lose H+ ions and give its…

Q: A student set up a titration apparatus that involved using 25.9 mL of 1.57 M acetic acid. The acetic…

A: Given : volume of acetic acid = 25.9 ml Molarity of acetic acid = 1.57 M Molarity of NaOH =0.154 M…

Q: How many grams of NaH2C6H5O7 must be added to a 300 mL solution of 0.15 M H3C6H507 (Ka= 3.2x 10) to…

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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: 100.0 mL 0.15 M aqueous HF (K₁ = 6.8 x 104) is mixed with 125.0 mL 0.23 M NaF. What is the pH of the…

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Q: A 5.55-g sample of a weak acid with Ka = 1.3 × 10-4 is combined with 5.00 mL of 6.00 M NaOH and the…

A: The general reaction between NaOH and diprotic acid is as follows,

Q: What is the pH of a buffer made from 0.580 mol of CH₃NH₂ (Kb = 4.4 × 10⁻⁴) and 0.120 mol of CH₃NH₃I?

A: In this question, we want to determine the Calculate the pH of the buffer solution.  You can see…

Q: How many moles of sodium hydroxide would have to be added to 125 mL of a 0.376 M hydrocyanic acid…

A: Ka of HCN = 6.2 × 10-10 pka = -log(ka) = 9.2

Q: A buffer solution is composed of 1.923 g of KH,PO4 and 4.699 g of Naz HPO4. (K, for dihydrogen…

A: The pH of this buffer solution would be calculated using Henderson-Hassalbalch equation .

Q: Consider the titration of 100 mL of 0.25 M formic acid (HCOOH) with 1.0 M NaOH. The Ka of formic…

A: Given, Volume of HCOOH = 100 mL = 0.1 L   (1 mL = 0.001 L) Molarity of HCOOH = 0.25 M = 0.25 mol/L…

Q: Consider the following buffer system: 1.03 M H3PO4 and 0.93 M H₂PO4-. What is the pH of such a…

A: Acidic buffer :-  A mixture of weak acid and its salt with strong base is known as acidic buffer…

Q: What is the pH of 0.33 M acetic acid to 1.00 L of which 1.44 g of sodium acetate, NaCH3 CO2, has…

A: Given: The molarity of acetic acid = 0.33 M The mass of sodium acetate added = 1.44 g The volume of…

Q: Calculate the pH of solution after the addition of 0.010 mol NaOH to 1.00L of a 0.100 M acetic acid…

A: Given data: 0.010 mol NaOH 1.00 L of 0.100 M acetic acid 1.00 L of 0.100 M sodium acetate Ka = 1.8…

Q: 5. What volume of 1.50 M NaOH must be added to 200.0 mL of 1.00 M glycolic acid (HC,H;O;) to produce…

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Q: Consider the following buffer system: 0.96 M H2CO3 and 1.08 M HCO3-. What is the pH of such a system…

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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: find the acidity function when adding 5 ml of NaOH Calculate the pH value when titrated between 25…

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Q: For each buffer system, calcutate the amounts (volume of stock solution or mass of solid) necessary…

A: Given, 100 mL of 0.100 M of acetate buffer having pH 4.0 pKa of acetic acid = 4.74 Concentration of…