esign an EDTA masking titration that can find the concentration of Al 3+, Ca2+, and Fe3+. Explain how your scheme would work. I know adding F- would mask Al 3+ and Fe3+ to give Ca2+ . I was wondering if using hydroxylamine to reduce Fe3+ to Fe2+ would also reduce the Al3+?
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- DETERMINATION OF WATER HARDNESS BY EDTA TITRATION 1. Why is it needed to add a pH 10 buffer to the sample during EDTA titration? 2. What is EDTA and why can it be used to determine the hardness of water?Please answer this NEATLY, COMPLETELY, and CORRECTLY for an UPVOTE. A 50.00-mL sample of water containing Ca2+ and Mg2+ is titrated with 10.28 mL of 0.01001 M EDTA in an ammonia buffer at pH 10.00. Another 50.00-mL sample is titrated with NaOH to precipitate Mg(OH)2 and then titrated at pH 13.00 with 6.75 mL of the same EDTA solution. Calculate the concentration of CaCO3 and MgCO3 in the sample in ppm.Calculation at the equivalence point of a complexation titration: What is the pSr value of a 50.00 mL solution of 0.01000 M Sr2+ (formation constant, Kf = 5.348 x 108) after the addition of 25.00 mL of 0.02000 M EDTA which was buffered to pH 11.00? Round your final answer to two decimal places to the right of the decimal point.
- Would the indicator bromocresol green, with a transition range of pH 3.8–5.4, ever be useful in the titration of a weak acid with a strong base? Why?All of the following criteria must be met for a titrimetric analysis to be feasible EXCEPT: Select one: a. Reaction between the standard and analyte must be known. b. There should be a substance for endpoint detection c. Reaction must proceed quantitatively to completion. d. Reaction between the reactants must be slow.A student has a sea water sample which contains Ca2+ ions . Describe briefly how he willdetermine the concentration of Ca2+ ion in the sample using a simple titration. Explain the colourchanges at the endpoint. Which medium is suitable for performing the titration, acidic or basic medium and why?
- why is it difficult to find the Ksp value for Mg(OH)2 during titration, compared to Ca(OH)In the titration of 50 mL 0.02 M Sr² with 0.02 M EDTA in a buffered medium at titrated pH 11, calculate the psr value for the addition of 10 mL EDTAWhy is the use of high-precision volumetric material essential for titration?
- Find the pH during the titration of 20.00 mL of 0.1000 Mtri-ethylamine, (CH₃CH₂)₃N (K(b)=5.2X10⁻⁴), with 0.1000 M HCl solution after the following additions of titrant:(a) 0 mL(b) 10.00 mL(c) 15.00 mL(d) 19.00 mL(e) 19.95 mL(f ) 20.00 mL(g) 20.05 mL(h) 25.00 mLI was just wondering how you got the 4.0 x 10-4 for the acidionzation constant.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.