need help finding the total value concentration of Ca2+ + Mg2+. I am having trouble how to solve it.  The total mass of EDTA that was used was about 0.6053 grams.  The average volume of EDTA that was used was 7.11 mL.  50-mL of an unknown water was used that was mixed with 3 mL of pH buffer 10 and about 6 drops of Eriochrome black T indicator.

Q: Make a methodology flow chart with this qualitative analysis of these anions. The methodology used…

A: Let us make a tabulation using the data given above. S.NO Name of the Anion Test description 1…

Q: pH Measurement and Buffer Q1.Substances    pH value at 25°C     [H+] (mol dm-3)   vinegar…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: aria wants to determine the concentration of Calcium ions in water from their well. She used a 100.0…

A: Maria wants to determine the concentration of Calcium ions in water from their well. She used a…

Q: Natalia wish to sketch a weak acid-strong base titration curve. Before that, she needs to collect…

A: The question is based on the concept of titrations.   we are titrating  a weak acetic acid with a…

Q: Example: Calculate the pH when the following quantities of 0.200 M NaOH solution have been added to…

A: Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: Volume of N2OH pH added (ml) 1.00 1.22 1.48 1.85 2.18 2.89 3. 20 3.50 3.90 10 20 30 35 39 39.50…

A: The question is based on the concept of titrations. we are writing a strong acid with a strong base.…

Q: You are to make 250mL of Edward’s Buffer, the recipe of which is as follows: 25mM EDTA, 250mM…

A:

Q: Propionic acid is provided (pKa - 4.0) to make a 0.8 M buffer at pH = 6.0. What is the ratio of…

A:

Q: A scientist wants to prepare 500 ml of 500 mM formate buffer pH 3.00. The pKa for formic acid,…

A:

Q: Determine the pH at the point in the titration of 40.0 mL of 0.200 M H2NNH2 with 0.100 M HNO3 after…

A: Given : Volume of NH2NH2 = 40 ml = 40 / 1000 L concentration of NH2NH2 = 0.200 M concentration of…

Q: From the titration curve below, estimate the "target pH" to synthesize potassium dihydrogen…

A:

Q: Sir Bong later found out that he only has a 10 mM stock solution of benzoic acid and a 1M stock…

A:

Q: You have a 1M solution of the buffer Tris-HCI. You need to use the buffer in the lab at a final…

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

Q: c) Jack and Helen wish to sketch a weak acid strong base titration curve. Before they can do so,…

A:

Q: Pls solve this question correctly in 5 min i will give u like for sure You have the following…

A: To prepare a pH 7.40 buffer with a base concentration of 0.100 M using the chemicals available, you…

Q: pH vs. VB 14 12 10 4 25 50 75 100 VBase (mL) Based on the titration curve, which acid was most…

A: pKa = -log(Ka) For Ascorbic acid, pKa = -log(7.9*10-⁵) =4.10 Chloroacetic acid, pKa = -log(1.4*10-³)…

Q: E OC 25 50 75 100 125 150 175 Volume of 0.100 M NaOH (ag) (mL) the major species present at point A?…

A: In the titration,  KOH is added dropwise to H3PO4 solution.  So , At A point,  only H3PO4 is…

Q: A 100. mL buffer solution is 0.200 M in HAc and 0.150 M in NaAc. Calculate the pH of the solution…

A:

Q: 3) Prepare 250 ml of 0.1 M Tris-HCI buffer, pH 7.8 as follows: Weigh 3.029 g of Tris = Tris…

A: The calculation for the preparation of 250 mL of Tris-HCl buffer solution pf pH 7.8 is needed to be…

Q: In the lab background and part II section A of the lab protocol, you determined how to make the…

A: The law of dilution states the following relation: Where C1 and C2 are the concentrations of the…

Q: Consider a 25.0 mL buffer solution containing 0.100 M sodium alderate and 0.126 M alderic acid.…

A:

Q: What masses of dimethylamine and dimethylammonium chloride do you need to prepare 3.00 L of pH =…

A: Given,  The volume of dimethyl amine and dimethyl ammonium chloride buffer = 3.00L The total…

Q: 5) The Buffer 2 solution was such that each 10.00 mL of buffer solution contained 9.50 mL of 0.40 M…

A: Calculate the number of moles of NaAc and HAc in the buffer solution: NaAc: 0.40 M * 0.0095 L =…

Q: 30.0 mL of 0.200M H2SO3, a diprotic acid is titrated with 0.100M NaOH. a) Calculate the volume…

A: The reaction taking place between H2SO3 and NaOH is- H2SO3 + NaOH→NaHSO3 + H2ONaHSO3 + NaOH→Na2SO3 +…

Q: Practice 16: Consider The Titration of 50. mL of A 0.10 M Benzoic Acid Solution (HC7H5O2 K₁ = 6.5 x…

A: The equivalence point in a titration is the point at which the amount of titrant added is enough to…

Q: How many ml of NaOH stock solution have been added to establish the buffer?

A: To prepare the desired buffer solution, at first, an acetic acid solution was taken and NaOH was…

Q: 8.37 pH 5.0 mL 10.0 mL one: Tartaric acid (H₂C4H₂O6) Maleic acid (H₂CH₂O) Malonic acid (H,C.H, O)…

A:

Q: A buffer solution was prepared by mixing 568.0 mL of 0.299 M NaOCI and 210.8 mL of 0.174 M HOCI.…

A: Given data :

Q: 4 Part A Which of the two acid solutions is more concentrated? Acid (b) is more concentrated. Acid…

A: The titration curve for two weak acids is given in the question.Both are titrated with 0.100 NaOH

Q: A 100. mL buffer solution is 0.200 M in HAc and 0.150 M in NaAc.  Calculate the pH of the solution…

A:

Q: 2. The curve for the titration of 25.0 mL 12 of 0.100 M CSH5N(aq), pyridine, with 0.100 M HCI(aq) is…

A: We have to use date of graph  for calculate pKb.

Q: Based on the shape of the curve, what is the nature of the analyte? Strong acid Strong base

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Which of the following accurately describes the pKA of acetic acid (CH3COOH)? Select all that are…

A: Answer: This question is based on the detailed understanding of acid-base titration.

Q: Label the equivalence point on the graph of pH versus volume of the titration of a strong acid and…

A:

Q: A buffer was prepared by mixing 700 ml of .70M lactate solution and 800 ml of a .40 M lactic acid…

A: According to the question, The molarity of lactate solution = 0.70 MThe volume of the lactate…

Q: E D C B 1. Using calculated molarity of acid (line 3, Table 2) and measured pH of the acid before…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: Referring to the figure below, what volume of the titrant was used to reach half-neutralization…

A: The titration curve given is,

Q: Which of the following combinations of acids and conjugate bases would be the best to create a pH…

A: 1- In this question, we will see the best buffer system at pH 7.0  You can see the details…

Q: What is the pH of a buffer made from 0.220 mol of HCNO (Ka = 3.5 × 104) and 0.410 mol of NaCNO in…

A:

Q: A solution (containing one of the following cations: Hg22+, Cd2+, Sn2+, NH4+) was tested with…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: ame pH, or not? xplain why this is so.

A: The question involves comparison of titration curves of two reactions. we have been given a weak…