If an unknown consisted of Co+2, Fe+2, Sr+2, or Ni+2, which cation would completely complex with EDTA first? Second? Third? Also, what are the minimum pH values for satisfactory titrations of the above metal cations?
Q: Which of the following acidic solution is the strong acid 2, [Ru(OH2)6]*3,*[Fe(OH2)6] [Fe(OH2)6]*3…
A: The acidic character of an ionic compound depends on the charge density. If the charge density is…
Q: Which of the following is true at the equivalence point in the titration of Fe³+ with EDTA? Select…
A: EDTA is a hexadentate ligand. The reaction of EDTA with metal ion Mn+ takes place in the following…
Q: The concentration of cyanide,CN- , in a copper electroplating bath can be determined by a…
A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…
Q: after dissolving in 50.0 ml of good water, the zinc in a 0.3232 gram sample of foot powder was…
A: The percentage of Zn can be calculated asThe weight of zinc = 0.3232 gramsMolar mass of Zn2P2O7 =…
Q: Considering the graph given, what is the most suitable pH for the titration of calcium with EDTA?…
A: pH 10 buffer is used in EDTA titration because in EDTA Y4- is predominant, and we want Y4- to react…
Q: Which indicator is used in the complexometric titrations of zinc with EDTA? Define Hardness of…
A:
Q: When excess solid Mg(OH)2 is shaken with 1.00 L of 1.0 M NH,Cl solution, the resulting saturated…
A: Given data contains, Volume of NH4Cl is 1.00 L. Molarity of NH4Cl is 1.0 M. The pH of the solution…
Q: titration of 50.00 mL of 0.1100 M Fe3+ with 0.07750 M Sn2+ is carried out. The analytical reaction…
A:
Q: Compare the two quantities based on the given condition: At the equivalence point in the titration…
A: At the equivalence point, all of the Ca2+(aq) is converted to CaY2-(aq).
Q: As part of a geological team that studied a local cave, you brought with you a bunch of 1.00 g rock…
A: Cacite is also called as Calcium carbonate (CaCO3). Its abundance is very high and is referred as…
Q: Using the graph given, which metal can be titrated better with EDTA? A. Fe3 + B. Fe2 + C. Ca2 + D.…
A: pH 10 buffer is used in EDTA titration because in EDTA Y4- is predominant, and we want Y4- to react…
Q: which of the following is the concentration of the EDTA solution in terms of molarity?
A: Ca2+ forms a complex compound with EDTA ligand. EDTA is a hexadentate ligand. Onle mole of Ca2+…
Q: Using the graph given, which metal can be titrated better with EDTA and why? Fe3+ Fe2+ Ca2+ Hg2+
A: This is a method of quantitative estimation of concentration of unknown solution by titrating it…
Q: A2 ____ forms complex with EDTA ____ requires a second titrant for back-titration a. none…
A: Given:- ____ forms complex with EDTA____ requires a second titrant for back-titration a. none of the…
Q: Using the graph given, which metal can be titrated better with EDTA? A. Fe3+ B. Fe2+ C. Ca2+ D.…
A: From the graph we clearly see that complex formation constant of Fe3+ is higher among all the given…
Q: Which of the following is completely true regarding the titration of iron oxalate salt with EDTA? It…
A: In inroganic laboratories, Titrations are carried out to find out the concentrations of an unknown…
Q: A 0.72g sample of foot powder containing Zinc was titrated with 21.3mL of 0.02M EDTA. Calculate the…
A:
Q: Which of the following will cause no change in the amount of Fe calculated from the results of an…
A: Iron can be estimated spectrophotometrically by complexing Fe2+ with o-phenanthroline.
Q: In complexation volumetry, classify the statements below as true or false. Justify the one(s) that…
A: EDTA i.e. Ethylenediaminetetraacetic acid is a well known metal-chelating agent, it is hexadentate…
Q: At what pH does EDTA become a strong complexing agent? * 04 06 8 10 Which best describes the…
A: Ethylenediaminetetraacetic acid (EDTA) is a metal-chelating agent and binds metals such as chromium,…
Q: An EDTA solution was prepared by dissolving approximately 3 grams of Na2H2Y•H2O in sufficient water…
A: Given: Volume of Mg2+ ions = 50.00 mL = 0.050 L Molar concentration of Mg2+ = 0.004517 M Volume of…
Q: Regarding EDTA titrations and other complex forming reactions, indicate T or F 1) The relevant…
A: 1) False 2) False (6 Binding sites) 3) True ( Eriochrome Black T changes color from blue to pink.)…
Q: The potential at equivalence point of the following titrations will be dependent of the pH of the…
A: Potentiometric titration is another titration method where potential difference of analyte is…
Q: which of the following is the amount of magnesium in the sample in ppm? (Mg:24 g/mol)
A: Solution: Here Mg2+ ion is Complexometrically titrated with EDTA solution. So the reaction is: Mg2+…
Q: Using the graph given, which metal can be titrated better with EDTA? A)Fe3+ B) Fe2+ C) Ca2+ D) Hg2+
A: From the graph ,it is clear that Fe 3+ has highest complex formation constant .
Q: In the complexometric titration of Ca and EDTA, at what pH range does the EBT (Eriochrome Black T)…
A: When calcium chloride is added to EBT solution, the color turns red due to the formation of…
Q: 50.00 mL of 0.0524 M Pb(NO3)2 is titrated with 0.0419 M EDTA. The pH is buffered to 8.57. Find the…
A: At the equivalence point the initial moles of Pb2+ and the moles of EDTA added are equal. The total…
Q: A 0.5745 g sample of an alloy containing principally bismuth and lead is dissolved in nitric acid…
A:
Q: why Mg (II) must be added when EDTA is standardized using a calcium standard solution and Eriochrome…
A:
Q: 1. The attached figure shows a diagram of the predominance of the different protonated forms of EDTA…
A: Ethylenediaminetetraacetic Acid (EDTA) undergo complexing with metals by removal of all the acidic…
Q: Which of the following is completely true regarding the titration of iron oxalate salt with EDTA? It…
A: Titration s also known as volumetric analysis which is a laboratory method for quantitative…
Q: Considering the graph given, what is the most suitable pH for the titration of calcium with EDTA?
A: pH 10 buffer is used in EDTA titration because in EDTA Y4- is predominant, and we want Y4- to react…
Q: Titration of 25.0 mL of a 0.0500 M Zn2+ solution with 0.0550 M EDTA in a solution buffered at pH 8.…
A: Complexometric titration is a type of titration which is mainly utilized for the evaluation of…
Q: Given 100 mL of a solution that contains 0.80 mM Ag* and 0.80 mM Cu*, can the two metals be…
A: Solubility product is a product of the concentration of ions with the power when the solution is…
Q: Calculate the potential of the solution in the titration of 50.0 mL 0.100 M Fe2+ in 1.00 M HClO4…
A:
Q: Why is the solution containing the metal ion buffered before titrating with EDTA?
A: Ethylenediaminetetraacetic acid or EDTA is a polyamino carboxylic acid. It can form 1 : 1…
Q: 0.8153 g of a sample containing Pb(NO3)2 was taken, dissolved in water, and 40.20 mL of 0.06 M EDTA…
A: A numerical problem based on EDTA titration, which is to be accomplished.
Q: Which rapid and quantitative analysis requires a sample solution of metal ion to be titrated against…
A:
Q: 11) Will a 0.15 M solution of NH3 be sufficient to keep Zn2+ from precipitating from a solution of…
A:
Q: For the complexiometric titration of Ca2 + ions in the shell of the egg sample weighing 62,576 g,…
A:
Q: A 100.0 mL solution of 0.0200 M Fe3+ in 1 M HClO4 is titrated with 0.100 M Cu+, resulting in the…
A: In electrochemistry, the Nernst equation is an equation that relates the reduction potential of an…
Q: Which of the following statements are correct? Metallochromic indicators form complexes with EDTA…
A: This question is related to complexometric titration. EDTA is indicator used in complexometric…
Q: which of the following is the concentration of the EDTA solution in terms of molarity
A: Solution: Here given experimente is carried out to know concentration of EDTA solution. Where,…
Q: Which of the statements below are true for the titration of Fe2* with standard Cet? I. The indicator…
A: As per the guideline, since you have asked multiple questions, we have solved the first question for…
Q: Based on the diagram, what metal cation(s) can be titrated with EDTA at pH 7? a) Mn2+ b) Sr2+ c)…
A: According to the given graph, metal ions with high log(KMY) value can be titrated at low pH, and…
Q: (i) Plot the species distribution diagram for chloro complexation of lead (Pb) based on the log of…
A:
Q: At pH 7, what metal ions can be titrated by EDTA?
A: In complexometric titrations, EDTA requires a certain minimum pH for titrating each metal ion. The…
Q: 50 mL of a sample known to contain Mg+2 was taken and titrated with 0.075 M EDTA standard solution…
A:
Q: Which of the following statements is false? EDTA acts as a Lewis base while the metal analyte…
A:
Q: the percentage of ZnO in the sample?
A:
If an unknown consisted of Co+2, Fe+2, Sr+2, or Ni+2, which cation would completely complex with EDTA first? Second? Third?
Also, what are the minimum pH values for satisfactory titrations of the above metal cations?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- At pH 7, what metal ions can be titrated by EDTA?Sometimes it is not possible to indicate the end point of a titration.a) How can one proceed then and what is the name of the type of titration that can be performed? Briefly describe. An example in which this method can be used is in the determination of mercury, which forms strong complexes with EDTA, but for which there is no suitable indicator that can indicate the end point. b) You are given the task of determining the Hg2 + concentration in a sample solution? After adding an excess of EDTA, the sample solution is titrated with a magnesium solution. 20.00 ml of a 0.0452 M EDTA solution was added to 30.00 ml of sample solutionThe excess EDTA was determined by adding 0.0500 M Mg 2+ solution, consuming 4.37 ml to the end point.Which of the following statements are correct for the titration of Fe2+ ion with standard Ce4+ ion? I- Indicator electrode potential is calculated using the Fe3+ half-reaction after calculating the equilibrium concentrations of Fe3+ and Fe2+ in the solution before the Ce4+ solution is added. II- Before the equivalence point, the indicator electrode potential is calculated using the Fe3+ half-reaction since [Fe3+] and [Fe2+] are known. III- At the equivalence point, the indicator electrode potential is the average of the E0 values of Fe3+ and Fe2+ IV- After the equivalence point, the indicator electrode potential is calculated using the Ce4+ half-reaction since [Ce3+] and [Ce4+] are known. A.II and IVB. I, II, III and IVC. I, III and IVD. II, III and IV
- A sample of Na2CO3 is known to contain inert matter and either NaOH or NaHCO3. In the potentiometric titration of a 0.225 gram sample with 0.100 N HCl, using a saturated calomel electrode and a hydrogen electrode, the following data were obtained (photo attached) Plot the titration graph and from it determine the nature and approximate composition of the sample. At what volume does the first equivalence point occur? ____ mL At what volume does the second equivalence point occur? ____ mLUsing the graph given, which metal can be titrated better with EDTA and why? Fe3+ Fe2+ Ca2+ Hg2+Based on the diagram, what metal cation(s) can be titrated with EDTA at pH 7? a) Mn2+ b) Sr2+ c) Both Mg2+ and Ca2+ d) Both Zn2+ and Mn2+
- Which of the following statements is correct for the titration of Fe2+ ion with standard Ce4+ ion? I- The indicator electrode potential is calculated using the Fe3+ half-reaction after calculating the equilibrium concentrations of Fe3+ and Fe2+ in the solution before the Ce4+ solution is added. II- Before the equivalence point, the indicator electrode potential is calculated using the Fe3+ half-reaction since [Fe3+] and [Fe2+] are known. III- At the equivalence point, the indicator electrode potential is the average of the E0 values of Fe3+ and Fe2+. IV- After the equivalence point, the indicator electrode potential is calculated using the Ce4+ half-reaction since [Ce3+] and [Ce4+] are known.Considering the graph given, what is the most suitable pH for the titration of calcium with EDTA?A. 6B. 12C. 8D. 10As part of a geological team that studied a local cave, you brought with you a bunch of 1.00 g rock samples to be studied. Each rock was prepared and titrated against 0.050 M EDTA. a. Calculate the percent calcite (CaCO3) content of rock A if it was titrated with 48.0 mL EDTA
- The titration of Zn+2 and EDTA is carried out in the same manner as the Mg+2-EDTA titration. In this case, the ammonia in the EDTA buffer serves an additional purpose, what is it?In order to adjust the EDTA solution, 10 mL of 0.01M Ca + 2 sample was taken and 10 mL of pH 10 buffer was added on it and it was completed to 100 mL. Then, two drops of EBT indicator were added and titrated with EDTA. Since the consumption is 13 mL, what is the concentration of EDTA solution in terms of molarity?Why is the solution containing the metal ion buffered before titrating with EDTA?