The sample of 30.00 mL of 0.015 M HClO is titrated with a 20.00 mL of a 0.015 M NaOH solution.  (c) What is the final molarity of HClO after the reaction with OH–?     (d) What is the pH after 20.0 mL of the NaOH solution is added? (Ka of HClO is 3.0*10–8)?

Q: HClO is a weak acid (Ka = 4.0 × 10–8) and so the salt NaClO acts as a weak base. What is the pH of a…

A: Ka of HClO is given as 4 x 10-8. It is required to calculate the pH of solution that is 0.054M in…

Q: What volume of (0.45 M) Ca(OH)2 must be added to 50 mL of 0.25-M (KOH) to give a solution 0.8 M in…

A: Concentration of Ca(OH)2 =0.45M Valume of KOH = 50ml Concentration of KOH =0.25M Concentration of…

Q: The pH of a 0.50 M solution of an acid, HA, is 4.67. Calculate Ka of HA.

A:

Q: When 0.412 g of a weak base with Kb = 3.10 ×10-5 the base is dissolved in 1.00 L of solution, it has…

A: Assuming the molar mass is M  Hence moles of base = mass / molar mass = 0.412 / M And concentration…

Q: Enter your answer in the provided box. A 4.27 × 10-3-mol sample of HY is dissolved in enough H₂O to…

A:

Q: If 8.5 grams of solid NaC2H3O2 (MW = 82.03 g/mol) are added to 100.0 mL of water, how many mL of 1.0…

A: Answer:- Henderson-Hasselbach equation :- This equation is used for the determination of pH or pOH…

Q: ) If 5.0 mL of 0.100 M NaOH is added to 100.0 mL of a 0.0500M phosphate buffer solution at pH 7.2,…

A: A solution which resists the change in pH when a small amount of acid or base is added to it,  is…

Q: Phenylacetic acid (C6H5CH2COOH, simplified here to HPAc) builds up in the blood of persons with…

A: Given data: The pH of Phenylacetic acid = 2.62. The concentration of C6H5CH2COOH [C6H5CH2COOH] =…

Q: What would be the pH of a solution of hypobromous acid (HOBr) prepared by dissolving 9.7 grams of…

A: given:  mass of HOBr = 9.7 g molar mass of HOBr = 96.91 g/mo moles of HOBr = 9.796.91= 0.1 moles…

Q: What is the pH of a buffer solution that is 0.40 M in formic acid (HCHO2) and 0.90 M in sodium…

A: Given: pKa of formic acid = 3.74 Concentration of formic acid = 0.40 M Concentration of sodium…

Q: What is the pH of a 0.320 M solution of Ca(NO₂)₂ (Ka of HNO₂ is 4.5 × 10⁻⁴)?

A:

Q: HCIO is a weak acid (Ka = 4.0 × 10-8) and so the salt NaClO acts as a weak base. What is the pH of a…

A: Kw = Ka x Kb  Kw = 1x10-14  given that Ka = 4x10-8 find Kb = (1x10-14) / (4x10-8) = 2.5x10-7 Initial…

Q: You want to prepare a buffer solution that has a pH equal to the pKa of the acid component of the…

A: The provided concentration of acid(HA)=0.10M Initial volume=100ml HA dissociate into HA ⇆ H+  + A-…

Q: What is the pH of a 0.1055 M CH3COOH solution (Ka = 1.75 × 10−5)?

A: Given concentration of CH3COOH = 1.75 × 10-5

Q: HCIO is a weak acid (Ka 4.0 x 10-8) and so the salt NaCIO acts as a weak base. What is the pH of a…

A: Given data; Ka=4×10-8Also, Kw=Ka×KbAnd,Kw=1×10-14 Consider the dissociation of given weak acid as;…

Q: What is the pH of a buffered solution that is 0.12 m lactic acid (HC3H5O3) AND 0.10 m sodium…

A:

Q: Determine the pH of 0.500 M NaA solution if the Ka of HA is 4.0 x 10 (Hint: Base in water)

A: Given : Concentration of NaA = 0.500 M And Ka of HA = 4.0 X 10-9  Since A- (coming from salt NaA) is…

Q: A 0.250-mol sample of HX is dissolved in enough H₂O to form 655 mL of solution. If the pH of the…

A: Ka of HX can be calculated as follows,

Q: If 8.5 grams of solid NaC2H3O2 (MW = 82.03 g/mol) are added to 100.0 mL of water, how many mL of 1.0…

A: GIVEN: Mass of NaC2H3O2=8.5 gVolume of NaC2H3O2=100 ml To solve: ml of 1.0M HCl needed to prepare a…

Q: What is the pH of benzoic acid solution with a %Ionization 2.6%? 7. If 105 mL of 0.25 M NAOH is…

A:

Q: NH3 is a weak base (?b=1.8×10^5) and so the salt NH4Cl acts as a weak acid. What is the pH of a…

A:

Q: A 0.492 M solution of a weak base has a pH of 10.59. What is the base hydrolysis constant, Ko. for…

A:

Q: 3. How many moles of hydroxide will be leftover if I add 100 mL of 0.5 M solution of KOH to 50 mL of…

A:

Q: c) What mass of NaC₂H,O,₂ must be dissolved in 0.300 L of 0.25 M HC₂H₂O₂ to produce a solution with…

A: mass of NaC2H3O2 ,sodium acetate = ? Volume of NaC2H3O2 = 0.300 L [HC2H3O2 ] = [CH3COOH] = 0.25 M pH…

Q: A 75.00-mL portion of a solution that is 0.0460 M in HClO4 is treated with 150.00 mL of 0.0230 M…

A: Acid reacts with base to form salt and water. The given acid is HClO4 and base is KOH.

Q: What volume of 0.1543 M NaOH must be added to 25.00 mL of 0.2405 M HCOOH in order to prepare a…

A: Ka = 1.8 ×10–4 pKa = – logKa = – log(1.8 ×10–4) = 3.745 Let n be the number of millimoles of NaOH to…

Q: An acid solution is made by diluting 30.6 mL of 0.2360 HI to 1.000 L. 1. What is the pH of this…

A: pH measures the acidity of the solution. The concentration of hydronium ion. pH determined as…

Q: Milk of magnesia is a suspension of magnesium hydroxide in water. Although Mg(OH)2 is relatively…

A:

Q: HClO is a weak acid (Ka = 4.0 × 10–8) and so the salt NaClO acts as a weak base. What is the pH of a…

A: It is required to calculate the pH of the solution that is 0.016 M in NaClO.Ka for HClO = 4 x 10-8…

Q: a) What is the pH and pOH of 0.001 M NaOH solution, which is the strong base? b) The Ka value of…

A: pH + pOH = 14 pOH = -log [OH-] For a weak acid: [H+] = (Ka x C)1/2 Where, C = molar concentration

Q: A 1.0 M solution of a weak acid, HA has a pH of 2.64. What is the value of Ka for this acid?

A: The acidic strength of all known acids is dependent on their dissociation constants. This constant…

Q: 2.1. Calculate the pH of a Sr(OH)2 solution prepared by dissolving 0.3211 g of Sr(OH)2 and making up…

A:

Q: Calculate [OH⁻] in a solution obtained by adding 1.70 g solid KOH to 1.00 L of 10.0 M NH₃. (Kb of…

A: Given Molarity of NH3 = 10M Mass of kOH = 1.7g Kb of NH₃ is 1.80 × 10⁻⁵ Molar mass of KOH = 56 g/mol…

Q: How many moles of NH3  would need to be added to 512.9 mL of a 0.25 M solution of NH4Cl to produce a…

A:

Q: HClO is a weak acid (Ka=4.0×10−8Ka=4.0×10−8) and so the salt NaClO acts as a weak base. What is the…

A: Ka of HClO is given as 4 x 10-8. It is required to calculate the pH of solution that is 0.029M in…

Q: What will be the pH of a solution when 100.0 mL of 0.100 M NaOH is reacted with 9 mL of 1.00 M…

A: Applying formula MV=M1V1- M2V2  POH = -log [OH-]

Q: The pH of a 0.55 M aqueous solution of hypobromous acid, HBrO, at 25oC is 4.48. What is the value of…

A: The concentration of HBrO solution = 0.55 M. pH of aqueous HBrO solution = 4.48.

Q: What is the pH of a 0.600 M solution of HSO, (Ka = 6.6 × 10°)? (Please show your answers with 3 sig…

A: pH of solution is equal to the negative logarithm of hydronium ion concentration. pH=-log(H3O+) Ka…

Q: The uses of sodium phosphate include clarifying crudesugar, manufacturing paper, removing boiler…

A: Na3PO4 + 3H2O --------> 3NaOH + H3PO4  Molecular weight if Na3PO4 = 163.94 g/mol  Molecular…

Q: What is the pH of a 0.870 M solution of Ca(NO2)2 (Ka of HNO2 is 4.5 × 10*)?

A: dissociation of Ca(NO2)2 Ca(NO2)2(aq)→Ca2+(aq)+2NO2-(aq) we can see 2mol of NO2- is formed from 1…

Q: What is the pH of a 0.450 M solution of Ca(NO₂)₂ (Ka of HNO₂ is 4.5 × 10⁻⁴)?

A:

Q: A buffer solution is 0.402 M in NaH2PO4 and 0.318 M in Na2HPO4. If Ka for H2PO4- is 6.2 x 10 -8,…

A: The solution has NaH2PO4 which will dissociate completely into ions Na+ and H2PO4-  Hence…

Q: A 0.45 M aqueous solution of HBrO at 48°C is found to have a pH of 4.85 . What is the value of Ka…

A:

Q: NH3 is a weak base (Kb = 1.8 × 10–5) and so the salt NH4Cl acts as a weak acid. What is the pH of a…

A: Dissociation constant of base is given by,

Q: A 0.255 M solution of a weak acid, HA, has a pH of 3.24. Calculate the Ka for the acid.

A: For a weak acid solution: From the Ostwald's Law: [H+] = (Ka x C)1/2 pH = -log [H+]

Q: HClO is a weak acid (?a=4.0×10−8) and so the salt NaClO acts as a weak base. What is the pH of a…

A: An acid is a substance that can furnish the hydrogen ions in the aqueous solution. The weak acid…

Q: 2. Calculate the molarity of the resulting solution if 0.629 grams of Hydrogen ion [H*] is dissolved…

A: In the given question we have to calculate the molarity and pH of the hydrogen ion. given data:…

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.