In a weak acid titration, if the buret was not prepared properly and a considerable amount of water was left in it, what would have been the effect on the calculated value of Ka?

Q: Phosphoric acid is a triprotic acid with the pK, values pK1 = 2.148, pK2 = 7.198, and pK3 = 12.375.…

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Q: Why is it preferable to titrate HCI with NaOH than the reverse?

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Q: acid:conjugate base

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Q: hosphoric acid is a triprotic acid with the pK, values pKa1 = 2.148, pK2 = 7.198, and pK3 = 12.375.…

A: The question is based on the concept of buffer solution.   A buffer is a solution which resist any…

Q: What must be the minimum concentration of hypoiodous acid in 1.00L buffer solution of a pH=10.72…

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Q: Phosphoric acid is a triprotic acid with the p?a values p?a1=2.148, p?a2=7.198, and p?a3=12.375.…

A: Ionization of phosphoric acid is,

Q: If you did not rinse off the pH probe between measuring the pH of the HCl solution and the NaOH…

A: Since we have not rinse off the pH probe after measuring the pH of HCl. Hence it will have some HCl…

Q: What is the resultant pH after mixing 30.0 mL of 0.50 M HCI with 20.0 mL of 0.90 M NaOH? Express…

A: Given: Concentration of HCl = 0.50 M Concentration of NaOH = 0.90 M Volume of NaOH solution = 20.0…

Q: What are two primary standards that can be used to standardize base solutions other than KHP and…

A: Primary standards are reagents that are used for determining the concentration of the unknown.…

Q: What is the effect of the sprite/baking soda mixture on the acidity and basicity on a mixture?

A: The Chemical name of Baking Soda is Sodium Bicarbonate and has pH of 9. It is found in most of the…

Q: 3. When you conduct a titration, how do you choose the best indicator to use?

A: Titration - Calculating the concentration of a certain analyte in a mixture is done using the…

Q: Is the use of an indicator to determine a concentration using titration as good as using a pH meter?…

A: pH indicators are chemical compounds which show the change in color at the equivalence point on…

Q: Phosphoric acid is a triprotic acid with the p?apKa values p?a1=2.148,  p?a2=7.198, and…

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Q: In a titration of 76.0 mL of a 0.500 M solution of a diprotic acid H,C,H,O, (malonic acid) with…

A: [H2C3H2O4] = 0.500M  Volume = 76.0mL = 76.0mL×1L/1000ml = 0.076L  [NaOH] = 0.255M  Molarity = moles…

Q: 4g of Sodium hydroxide pellets NaOH are dissolved in water to prepare 200 ml of solution (S.). From…

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Q: How did you determine the values of pka1 and pka2 from the titration curve?

A: For the titration of a polyprotic acid with a base, we get more than one equivalence points. We can…

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: True or False: At the equivalence point in a titration, the # moles acid = # moles base.

A: the point at which enough acid  and base to neutralize the solution called as equivalence point   .

Q: a volume of bore water with a pH of 8.06 was blended with an equal volume of another water sample…

A: pH = 8.06 for sample -1 pH = 6.00 for sample -2

Q: In an acid-base titration, why is the volume of a titrant on the last trial much lower?

A: Titrant: The standard solution or the solution whose strength is known as titrant

Q: Which acid would be the best to combine with its sodium salt to make a solution buffered at pH 5.25?…

A: Here we have to determine the mass of sodium salt of conjugate base required to form buffer solution…

Q: L.X., a classmate, started the titration but forgot to add phenolphthalein indicator  to the…

A: The titration L.X performing is acid-base titration. The acid in conical flask is the analyte whose…

Q: Calculate the volume (ml)of concentrated ammonia and the weight (gm) of ammonium chloride…

A: Given data, pH = 10 The final concentration of the salt = 0.20 mol. The molar concentration of…

Q: A buffer contains HCCO- and HCOOH. identify the conjugate acid and the conjugate bass.

A: Note : The solution will have HCOO- and not HCCO-

Q: In a titration of 32.0 mL of a 0.250 M solution of a triprotic acid H,PO, (phosphoric acid) with…

A: Given- Volume of  H3PO4 =32.0 mL  Concentration of H3PO4 =0.250M Concentration of NaOH=0.800 M

Q: In part one, if you allow your titration to go beyond a faint pink endpoint and it ends up dark…

A: The method which is used in the laboratory to determine the concentration of an unknown liquid is…

Q: For each experiment what should be the Molarity of HCI ? What kind of indicator will you use?

A: The equation showing the neutralization reaction between HCl and NaOH is-   Thus, at equivalence…

Q: Which statement is false?   a When titrating Na2CO3, there will be a half-equivalence point and an…

A: For the titration of Na2CO3, the following statements are true: When titrating Na2CO3, there will be…

Q: Explain what is acid-base titration.

A: Titration is  a technique in which unknown concentration of analyte/titrand is find out by titrating…

Q: In the titration of 82.0 mL of 0.400 M HCOOH with 0.150 M LiOH, how many mL of LiOH are required to…

A: Given, Volume of HCOOH = 82.0 ml Molarity of HCOOH = 0.400 M  Volume of LiOH = ? Molarity of LiOH =…

Q: What is the difference between Phenol Red indicator and Neutral Red indicator?

A: Both are pH indicators. The phenol red is a water-soluble dye and they are used as an indicator of…

Q: If carbonic acid (H2CO3) is titrated against a strong base, how many endpoints can be expected?

A: Carbonic acid is a weak acid that can be titrated with a strong base.

Q: Why Methyl orange is a suitable indicator in the titration of a strong acid with a strong base?

A: For a strong acid-strong base titration, the equivalence point is at pH 7.

Q: A solution is made by mixing 50.0 mL of a stock solution of 2.0 M K2HPO4 and 25.0 mL of a stock…

A: Buffer solutions: are defined as the aqueous solution which contains the mixture of the weak acid…

Q: 1. Describe how the technique of back titration could be used in an acid-base neutralization if the…

A: "Since there are multiple question, and it is not specified which question has to solve , i am…

Q: A 4.50-g quantity of a diprotic acid was dissolved in water and made up to exactly 225 mL. Calculate…

A: Given : Mass of acid = 4.50 g Volume of solution made = 225 mL = 0.225 L…

Q: why is it impossible to carry the titration of HCl solution with the NaOH solution to pH 14?

A: In titration, titrant is added dropwise to the titre solution and at the end burette reading is…

Q: In a titration of 60.0 mL of a 0.500 M solution of a diprotic acid H₂C₃H₂O₄ (malonic acid) with…

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Q: Calculate the pH of a mixture of 0.12 M acetic acid and 0.25 M sodium acetate. The pKa of acetic…

A: Given: Molarity of acetic acid = 0.12 M Molarity of sodium acetate = 0.25 M pKa of acetic acid =…

Q: Based on this information, what mass of solid conjugate base should the student weigh out to make…

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Q: In a titration of 35.0 mL of a 0.500 M solution of the diprotic acid H₂C₃H₂O₄ (malonic acid) with…

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Q: In the titration of 26.0 mL of 0.400 M HCOOH with 0.150M LIOH, how many mL of LIOH are required to…

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Q: If we titrate 10.00 mL of a 0.200 M HCl soultion with the sodium hydroxide, we find it requires…

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Q: 2. What pH values are considered acidic? How about basic? 3. What is the color of a basic solution…

A: pH is a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral. pHs…

Q: You have been observing an insect that defends itself from enemies by secreting a caustic liquid.…

A: The relation given by Henderson Hasselbalch for calculating the pH of the weak acid solution is…

Q: Equivalence Point pH = 7

A: equivalence point is the point at which the concentration of analyte and the titrant is equal. at…

Q: If the pH at the 1/2 equivalence point is 4.19, what would be the Ka?

A: Total volume needed to reach equivalence point is 19.24 ml.  Therefore,  Volume needed to reach 12…

Q: 35.75 mL of 0.500 mol/L KOH was needed to reach the endpoint in a titration of 25.00 mL HCl.…

A: It is an acid-base titration reaction of strong acid (HCl) with strong base (KOH)

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.