1. Colorimetric methods of analysis are based on having a reagent that changes as a function of the concentration of the analyte. Which term best completes the sentence? pH mass color viscosity
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Q: more soluble or less soluble
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- Which qualitative test for the identification of an anion was most interesting? Briefly justify your answerXanthurenic acid stock solution Absorbance 25 0.052 50 0.128 75 0.202 100 0.310 150 0.448 200 0.621 Plot a graph, from graph, y=mx (force the trend line to pass through origin since the blank with no xanthurenic acid was set to be zero absorbance) in which, y: Absorbance, x concentration1.Determine the color of the indicator in a given condition: METHYL ORANGE IN AN ACIDIC ENVIRONMENT. 2.This is the measure of reproducibility of data within a series of results. 3.This is the chemical to be subjected to testing in titrimetric method of analysis. 4.Determine the type of assay employed for this substance: TARTARIC ACID 5.Determine the color of the indicator in a given condition: PHENOLPHTHALEIN IN AN ALKALINE ENVIRONMENT. Please help me answer this questions. the answers are on the image I attached
- The following data are obtained from three standard soltions using UV-Vis spectroscopy: What is the colar concentration (M) of an unknown solution with an absorbance of 0.180 at 255 nm? The unknown solution contains the same analyte as the standard solution does. The molar mass of the analyte is 188.65 g/mol a) 4.82x10-5b)1.9x10-3c)3.60x10-4d)1.9x10-5e)1.8x 10-4What is a Zimm plot?Topic: QUALITATIVE ANALYSIS IN ANALYTICAL CHEMISTRY a. Differentiate General Test and Confirmatory test. b. Define the following Terms Cation Anion Confirmatory Reagent
- Determine the dissociation constants for the acids. Express the answers in proper scientific notation where appropriate. Acid A: pKa = 5.0 K₂ = a Acid B: pKa = 8.60 Ka = Acid C: pKa = -2.0 Ka =Calcelate mokality of 52 (음)/ 아 to Solalicn. A) 0.65 p) 0 구2 () o.81 D) 0.94 Calulete pt of 0-001 M oK H Poa solation A) ) c) I.5 D) 2.5 NGOH 2 lit Hy soq mixed with Calulete pH of solution N of Nof slit of then A) 8.25 8) S.75 C) 7. 55 D) 9.45Calçulate Hhe selubility iA Mofeach of Hhe Salts BaSoy ksp zliS Xlo(9) 2 MgCofA)2 ksp= 9.0Xld-12) A9CN kse: 2.0X10(-12). Dfes ksp-3-7 xlo(-19) Ag2sksp:1.6x10(-49)
- What is the basis for the separation of different compounds by ion ex-change?Write the equation for the reaction of each of the following bases in water and its corresponding Kb expression: (a) ammonia Kb (b) benzoate ion Kb (c) acetate ion Kb (d) monohydrogen citrate ion Kb (e) pyradine (C5H5N). KbDetermine the dissociation constants for the acids. Express the answers in proper scientific notation where appropriate. Acid A: pKa = 6.0 Ka Acid B: pKa = 9.60 Ka = -2.0 Acid C: pKa Ka =