After a student determined the pK values of a H3PO4 by titration, she realized that she had recorded on her data sheet that the concentration of NaOH used in the titration was 0.25 M, but her partner had filled the buret with 0.20 M NaOH.  Would you expect the calculated pK values to be correct or incorrect?  Explain your reasoning.

Q: Formic acid is a monoprotic acid with pK a= 3.74. Consider the titration of 200.00 mL of a solution…

A:

Q: A student titrated 50.0mL of a 0.10 M solution of a certain weak acid with NaOH(aq), what is the…

A: Step 1: From the given graph, it is clear that pH range 6 to 10 is found at 25.0 mL of NaOH added.…

Q: Can you please set up the ice table?

A: The given buffer solution consists of a weak base,C6H5NH2 and its salt ,C6H5NH3Cl.C6H5NH2 is a weak…

Q: Mouthwash acts to clean and disinfect mouths. Two important considerations when designing a…

A: A buffer is a solution which resists any change in pH on adding a small amount of acid or base.It is…

Q: Titrate 1.2035g of solid KHP (KC8H5O4) requires 23.89 mL of an unknown NaOH solution to reach the…

A: Given: Mass of KHP = 1.2035g Volume of unknown NaOH = 23.89mL= 0.02389 L To find: The molarity of…

Q: You are going to titrate 29.0 mL of 0.294 M cyanic acid (HCNO) with 0.15 M NaOH. What is the pH of…

A: The balanced equation is  HCNO (aq) + NaOH (aq) ---------> NaCNO (aq) + H2O (aq)

Q: Consider the titration of 40.0 mL of 0.250 Methanoic acid, CH3COOH, with 0.100 M calcium hydroxide.…

A: Step :

Q: 9. To isolate benzoic acid, you neutralized "the sodium salt in flask 2". Draw the structure of that…

A: Acid react with base to form salt and water is known as neutralization reaction.

Q: At a certain temperature, the solubility of strontium arsenate, Sr3 (AsO4)2, is 0.0490 g/L. What is…

A: Solubility of Sr3(AsO4)2 = 0.0490 g/Lmolar mass of Sr3(AsO4)2 = 540.70 g/mol

Q: PRE-LAB QUESTIONS Calculate the volume, in mL, of a 0.50 M NaOH solution that will be required to…

A: The volume (in mL) of 0.50 M NaOH is to be calculated that is required to neutralize the 1.2 g of…

Q: 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 78 1.9 2.0 222 2.1 22 0.04 0.06 0.09 0.11 0.15 0.19 0.24 0.30 0.38…

A: The objective of this question is to show the pKa values at the weak acid and weak base equivalence…

Q: Part 2 Calculate the molar solubility of Al(OH)3 in a solution that is slightly basic with a pH of…

A:

Q: Given the following experimental data, calculate the molarity and the pKa of the acid analyte (HA)…

A:

Q: Write your answer in the space provided. Show your calculations to get full credit. Explain why the…

A: An aqueous solution that consists of a mixture of a weak acid and its conjugate base, or vice versa…

Q: A 100.0-mL aliquot of 0.100 M diprotic acid H2A (pK1=4.00, pK2 = 8.00) was titrated with 1.00 M…

A:

Q: Part A You are asked to prepare a pH = 3.00 buffer solution starting from 1.40 L of a 1.00 M…

A: Volume of hydrofluoric acid (HF) solution = 1.40 LConcentration of HF solution = 1.00 MWe have to…

Q: Based on the titration curve shown here, what is the pKa of the acid being titrated?

A: It is asked to determine pKa from the acid-base titration graph.

Q: 3. Caffeine is an alkaloid and has base characteristics. Of the four nitrogens in the structure of…

A: Dear student , as per guildline I am allow to do 1st question in case of multiple subpart , please…

Q: 55/

A: 55.a)For buffer solution, pH is calculated by Henderson-Hasselbalch equationThe equation ispH = pKa…

Q: 10 8 - 6. 4 - 2- 5 10 15 20 25 30 35 40 45 50 Volume of titrant (mL) is Hd

A: A question based on acid base titration that is to be accomplished.

Q: Acetic acid has a pK₂ of 4.8. How many milliliters of 0.2 M acetic acid and 0.1 M sodium acetate a…

A: Given,Molarity of acetic acid=0.2 MMolarity of sodium acetate = 0.1 MpKa of acetic acid =4.8Molarity…

Q: The titration of 26.40 mL of HCl solution of unknown concentration requires 12.21 mL of a 0.150 M…

A: An acid reacts with a base to form salt and water. For the given acid-base reaction, the balanced…

Q: In a 500 mL buffer of 0.03 M lactic acid (pH = 3.6), 3 mL of 1 M NAOH was added. What is the final…

A: Given: Concentration of lactic acid (assuming HA) = 0.03 M Concentration of NaOH = 1 M Volume of…

Q: Consider the titration of 20.00 mL of 0.400 M benzoic acid (C6H5COOH) with 0.600 M NaOH. Determine…

A: The objective of this question is to determine the pH of the solution after the addition of a…

Q: Payalben

A: The objective of this question is to determine the ratio of the concentrations of NaHCO3 and Na2CO3…

Q: or each of the following compounds, decide whether the compound's solubility in aqueous solution…

A: If a substance releases H+ or OH- in aqueous medium upon dissociation then the solubility of that…

Q: What is the pH of a buffer that is 1.5 M in H2CO3 and 1.0 M in NaHCO3? Show your work.

A:

Q: A chemist generates the titration curve shown by slowly adding 1.0 M sodium hydroxide (NaOH) to 10…

A: Buffer solutions are those that resist the change in their pH on small addition of acid or base.…

Q: For each of the following compounds, decide whether the compound's solubility in aqueous solution…

A: The solubility of a compound in water can depend on the pH of the solution, especially if the…

Q: The K, for acetic acid (CH,COOH) is 1.737 × 10-5. What is the pK, for this acid? pKa = Use the…

A: We know that, pKa is the negative logarithm of Ka. i.e.                     pKa= -logKa We have, Ka…

Q: Draw the titration curve below and the structure(s) of the major ionic form(s) of glutamic acid that…

A: If the pH is greater than pKa then deprotonation occurs and it exists in deprotonation form. While…

Q: draw the predominant form of histidine at key points on the titration curve. - Base - pKa 1 - pKa…

A: Histidine: Histidine is a one of essential α-amino acid that is required in the biosynthesis of…