I only need help with questions three, please solve but always explain. I am not sure what the question is asking, and no other techniques come to mind when thinking about how to dry crystals more. mp range of semicarbazoneTollens' testaldehyde (control)unknowniodoform testacetone (control)unknown(circle one)+++-(circle one)+--1Your unknown isWrite name below and drawstructure in box at rightQuestions1. There is one compound (that contains only one carbonyl group) that gives botha positive iodoform test and a positive Tollens' test. This compound is notincluded on the table of unknowns. Use your knowledge of the test to predictthis compound and draw it in the provided box.Hint: the molecular weight of the compound is less than 60.HO2. Draw the structure of a molecule, an unknown aldehyde or ketone listed in thetables, that would show a negative Tollens' test and a negative iodoform test.There is more than one correct answer. Draw one in box at right.AcetaldehydeH여СаниоMW:442Ñ3. You acquired the following data: bp 173 °C; - Tollens', + iodoform tests;semicarbazone mp 105 °C. You are very confident that your unknown is 2-octanone. Data is spot on, excluding the semicarbazone mp. You suspect thesuppressed mp is due to wet crystals. What process or technique (other than continued oven drying) canhelp you obtain more pure semicarbazone andthus a more accurate mp for comparison?Please write answer in box at right.

We have to describe a technique or process other than oven drying that can help in obtaining a more…

3. You acquired the following data: bp 173 °C; - Tollens', + iodoform tests; semicarbazone mp 105 °C. You are very confident that your unknown is 2- octanone. Data is spot on, excluding the semicarbazone mp. You suspect the suppressed mp is due to wet crystals. What process or technique (other than continued oven drying) can help you obtain more pure semicarbazone and thus a more accurate mp for comparison? Please write answer in box at right.

3. You acquired the following data: bp 173 °C; - Tollens', + iodoform tests; semicarbazone mp 105 °C. You are very confident that your unknown is 2- octanone. Data is spot on, excluding the semicarbazone mp. You suspect the suppressed mp is due to wet crystals. What process or technique (other than continued oven drying) can help you obtain more pure semicarbazone and thus a more accurate mp for comparison? Please write answer in box at right.

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter26: Biomolecules: Amino Acids, Peptides, And Proteins

Section26.SE: Something Extra

Problem 53AP

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