Question:- We performed a titration with EDTA to determine the presence of Calcium in a limestone sample. We used a calcium carbonate standard to standardize the EDTA. Calmagite was used as the indicator and 1.5 g of MgCl2 was added to the EDTA to allow the indicator to function. Wouldn't this addition of magnesium to the titrant cause the end point volume to be too high? Please explain.

Q: One of the following statements is incorrect: O Standardization is required when the titrant…

A: The question is based on the concept of acid base titrations. We have to identify the incorrect…

Q: Consider the titration of 50.0 mL of 0.0500 M NaCl with 0.100 M AgNO3. Calculate pCl at various…

A: In a titration of NaCl with AgNO3 Silver chloride is precipitated and is known as…

Q: A student titrates 20.0 mL of solution of Mg(OH)2 with 0.0420 M EDTA. The initial buret reading was…

A: Mole of EDTA added is approximately 6.17 x 10-4 mol

Q: 50.00 ml of a solution containing iron (11) and iron (III) when titrated at pH2.0, 12.50 mL 0.01200…

A: The metal which can get titrated without interfering from others would be Fe3+. The complex…

Q: Plot the titration curve for titration of 50mL of 0.0150M Fe2+ solution buffered to pH's 7.0 with…

A: The question is based on the concept of complexometric titrations. We have  to calculate pFe at…

Q: In order to adjust the EDTA solution, 10 mL of 0.01M Ca + 2 sample was taken and 10 mL of pH 10…

A: Ca2+ ions forms a complex compound with EDTA ligand. One mole of Ca2+ inos form complex with one…

Q: exist? 4. What makes bromocresol green and phenolphthalein suitable for the double- indicator…

A: 4. The pH value of phenolphthalein ranges between 8.3 to 10. which makes it suitable as double…

Q: Several common masking agents used in EDTA titrations are listed paired with a mixture of two metal…

A: The objective of the question is to choose the masking agent with the correct metal combinations.

Q: The titration on the right was performed by placing 10.00 mL solution in an Erlenmeyer flask and…

A: The above questions is titration of  a solution with 0.1M HCl.

Q: 2. After preparing the buffer, they decided to determine the buffer capacity of the solution by…

A:

Q: 5. 20 mL of tap water sample is taken in a conical flask and 1 mL of pH 10 buffer and 3 drops of…

A: Hard water is the water that contains dissolved Ca2+ and Mg2+ ions. These ions react with fatty…

Q: Why is ethylene-di-amine tetra-acetic acid (EDTA) work as a base in complexometric titration? answer…

A: EDTA is a polyprotic acid having four carboxylic acid groups and two amine groups with a lone pair…

Q: 9.0x10-2 M NaBrO. Express your answer using two significant figures. ΑΣφ [OH ] = %3D

A:

Q: 10.0 mL sample of unknown sample containing Ca2* and Mg* titrated with 0.01 M EDTA. It need 15.0 mL…

A:

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: Concentration sodium thiosulfate solution used: 0.056 mol L-1 ACCURATE TITRATION VOLUME OF SODIUM…

A:

Q: 5. Why should the titration solution be buffered at pH 10.0?

A: In complexometric titration the titrant used is EDTA. EDTA forms a complex with the metal ions which…

Q: Let us assume that there is a 0.020 M EDTA titrant solution. Calculate the mass of pure dry CaCO3…

A:

Q: Calculate the hardness in terms of parts per million calcium carbonate (100.0869 g/mol) in a 50.00…

A: Given: Volume of milk sample = 50 mL Volume of EDTA solution = 10 mL Molarity of EDTA solution = 8 x…

Q: What are the two fundamental characteristics of metal ion indicator in EDTA titration ?

A: Metal ion indicators are the compounds that change the color of the solution when binds with metal…

Q: c) An EDTA solution is standardized by transferring 0.2657 g of Na,CO, to a 500 mL volumetric flask,…

A:

Q: What is the percentage of NaOH in the sample?

A:

Q: b) What is the function of using the following chemicals in the Determination of Zinc in…

A: Ion-exchange chromatography retains analyte molecules on the column based on coulombic (ionic)…

Q: Jojo Color HC,H,O, ZNSO,

A:

Q: How is ionic strength related to the 1/2 equivalence point in titration?

A: In titration, 1/2 or half equivalence point is the point where half of the analyte has been…

Q: n a complexometric titration experiment: Determination of Water Hardness, solve for the missing…

A: Na EDTA, Disodium Ethylene diamine tetra acetic acid (Na2H2C10H12N2O4 or Na2H2Y) reacts with Ca2+…

Q: A 25.00 ml of Ni2 solution was diluted in HCI and treated with 25.00 ml of 0.05283 M NazEDTA. The…

A: We know that   EDTA forms 1:1 complex with metals Zn+2 and Ni+2 Initial moles of EDTA = M*V =…

Q: Coulometry consumes larger amount of analyte than voltammetry

A: This is a multipart questions. According to guidelines In multiparts question we can solve only…

Q: _ In the titration why the colour changes from wine red to bue? 2_what are the harmful effects of…

A: Hello. Since more than one question has been asked, the first question shall only be answered in…

Q: 13. Anhydrous sodium carbonate is used as the primary standard to determine the exact concentration…

A: A primary standard is generally used in  titrations to identity the end-point. It must be highly…

Q: What is the pH at the equivalence point in the titration of a 20.9 mL sample of a 0.429 M aqueous…

A: The solution is given below -

Q: Four 10.0 mL unknown samples of a solution containing hydronium ions andbromothymol blue were…

A: First, we need to calculate the volume of sodium hydroxide solution used in each trial. This is done…

Q: A 50.00 ml aliquot of a solution containing Ca2+ and Mg2+ was buffered at pH 10 and titrated with…

A: The objective of the question is to determine the concentration of Ca2+ and Mg2+ in the solution.…

Q: In water analysis using back-titration technique, 1) What are the names of the anions that form…

A: 1. Chloride (Cl-) and sulfate (SO42-) are the anions that form water-insoluble salt with Ag (aq). 2.…

Q: 1. Winkler Analysis

A: Dissolved oxygen is the amount of gaseous oxygen present in water in its dissolved state. Winkler…

Q: Why a conventional indicator method is not suitable for the determination of Fe2+ ions to detect the…

A: In chemistry, there are many ways to check the deviation of experimental data from the accurate…

Q: 2,5 ml volume has taken from an “hypothetic” solution which includes (3+) Sb and (3+) Fe and at the…

A: Fe3+ ion is stable to KMnO4 solution so, only Sb3+ ion undergoes oxidation to Sb5+ ion. The chemical…

Q: The pKa of the acid can also be deduced from the titration data. Ka, the acid dissociation constant,…

A: The objective of this experiment is to determine the  (acid dissociation constant) and the…

Q: Calculate the silver ion concentration in terms of pAg during the titration of 50.00 mL of 0.05000 M…

A: Molarity of NaI = 0.05000 MVolume of NaI = 50.00 mLMolarity of AgNO3 = 0.1000 MVolume of AgNO3 added…

Q: 7. solution was observed to be 5.45, exactly halfway to its equivalent point. What is the Ka and pKa…

A:

Q: Which statement is TRUE for the following plot? Group of answer choices Compounds X and Y are both…

A: The nature of acids avn be determined from initial pH.  The equivalence point is the mid point of…

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: The answer to the previous question I calculated was 0.0324 M of the standard Ca solution and now…

A: Complexometric titrations are those in which there is a ligand and a metal ions being titrated and…

Q: How will 100mM Tris-Cl buffer be prepared?

A: