Answered: Calculate the polarity index for the…

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter22: Bulk Electrolysis: Electrogravimetry And Coulometry

Section: Chapter Questions

Problem 22.6QAP

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O Mger x O Phyal-Seren, X Menge PRACTICALRESEARC O on tta dutex O Fik | Cyusers/NolyDownloady Physical-Science QL.Mod2.pdf Gueit = Physical-Scienoe_01Mod2.pdl 12 / 16 100% molecules What's More Activity 1 Properties of Polarities 10 Directions: Explain the different molecular propertirs below regarding your understanding of molecular polarity. Property Explanation Salubility Boiling Point Mincibility Activity 2 Molecular Doodle Directions: Illuatrate the Lewis dot atructuren, name the shupe of the malecule, and identify whether the following molecules are polar or nonpolar based on 12
An organic compound is analysed and found to contain 66.7% carbon, 11.2% hydrogen and 22.1% oxygen by mass. The compound boils at 79.6 C. At 100 C and 0.970atm, the vapour has a density of 2.28g/L. The compound has a carbonyl group and cannot be oxidized to a carboxylic acid. Suggest a structure for the compound.
DATA TABLE Solution Conductivity (uS/cm) A- CaCl, 9362 A- AlC, 11707 A - NaCl 5214 B- HC,H;O2 461 В - HС 17330 B- H;PO. 6661 B- H;BO3 C- H,Odistilled C-H,Otap 545 C- CH;OH C-CHO2 1. Why do the Group A compounds, each with the same concentration (0.05 M), have such large differences in conductivity values? 2. Arrange the compound in group B from strongest to weakest electrolytes based on conductivity values.
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Ascorbic acid, H2C6H6O6, is a diprotic acid usually known as vitamin C. For this acid, pKa1 is 4.10 and pKa2 is 11.79. When 125 mL of a solution of ascorbic acid was evaporated to dryness, the residue of pure ascorbic acid had a mass of 3.64 g. Your answer is correct. Calculate the molar concentration of ascorbic acid in the solution before it was evaporated. 0.164 Hint Your answer is partially correct. What was the pH of the ascorbic acid solution before it was evaporated? pH = 2.44 What was the concentration of the ascorbate ion, C6H6062, before the solution was evaporated? i M M

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Calculate the polarity index for the following mobile phase: n-hexane: chloroform: methanol (85:10:5).