Macroscale and Microscale Organic Experiments
7th Edition
ISBN: 9781305577190
Author: Kenneth L. Williamson, Katherine M. Masters
Publisher: Brooks Cole
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 7, Problem 5Q
In experiment 1, how many moles of benzoic acid are present? How many moles of sodium bicarbonate are contained in 1 mL of a
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
What impact do you think using 1mL of phenolphthalein instead of just drops would have?
Can you please answer and clearly show your work for all the parts to this question.
Draw the three possible starting aldehydes you may use in this experiment. Calculate the moles in 1.0 mL for each. Write a general equation for converting from mL to mol.
1.0 mL = mol
1.0 mL = mol
1.0 mL = mol
Why do you need to add boiling chips to the experiment?
A. It decreases the boiling time
B. It acts as a neutralizing agent to keep the pH at 7
C. It provides more surface area for a faster reaction
D. It helps increase the pH to prevent having an acidic solution
Chapter 7 Solutions
Macroscale and Microscale Organic Experiments
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- Propose an alternative method for purifying the product today. Briefly describe how you would determine was effective. the reactionis attached and the procdeudre is below Synthesis of Dibenzalacetone (A) In this lab you will need to determine the amounts of the reactants you will use. We will use 0.0125 moles of acetone. You need to: (1) convert this into a volume in mL, (2) Calculate the number of moles of benzaldehyde needed based on the balanced chemical reaction, (3) Convert the number of moles of benzaldehyde into volume in mL. Your reagent table should reflect your calculated values. Mix the benzaldehyde and acetone based on the volumes from your prelab calculations in a testtube. Add 25 mL of 10% NaOH solution to a 125 mL Erlenmeyer flask along with a stir bar and 20 mL of ethanol. Make sure the temperature of the solution in the flask is below 25 C before proceeding. Add half of the solution from your test tube to the flask. Allow the solution to stir for 15 minutes…arrow_forwardWhat is the dilution factor if 10 µL of extract is added to 990 µL distilled water?arrow_forwardCalculate the Initial Concentration, in units of Molarity, for each reagent used in each of the three trials in this experiment.arrow_forward
- In glucose estimation using Benedict's Reagent, briefly explain what would happen if the water evaporates completely and is not immediately replaced and what effect this will have on the calculated titer of Benedict's reagent.arrow_forward1. What is the weight of the total ash in trial 1? 2. What is the % total ash in trial 1? 3. What is the weight of the acid-insoluble ash in trial 1? 4. What is the % Acid-Insoluble Ash in trial 1?arrow_forwardShow your complete solution.1. How many grams of hydrocortisone should be used in preparing 120 suppositories, each weighing 2g and containing 1% of hydrocortisone?arrow_forward
- A student rushed through this experiment. Describe the effect that the following procedural changes would have on the percent recovery of acetanilide. Briefly explain the basis of each answer.(a) Rather than adding 0.5-mL portions of boiling solvent to the acetanilide, the student added 5-mL portions of boiling solvent.(b) The student did not pre-heat the gravity filtration apparatus.(c) The student forgot to cool 5 mL of solvent in Part 5 and washed the crystals with room-temperature solvent.arrow_forwardHow can Separate Sodium Hydroxide and Sodium Carbonate in the Assay Experiment ?arrow_forwardA student forgot to add the mass of the unknown solute in trial 1 to the mass of the solute that was weighed for trial 2 and then added to the cyclohexane-solute solution used in trial 1. How would this omission affect the calculated molecular weight of the solute?arrow_forward
- At the end of your experiment, left over reagents should be disposed of in a(n) Regular garbage Chemical waste container Broken glass container Sinkarrow_forwardPlease answer the question at the bottom, Thanks. LAB NOTES FOR PREPARATION OF BUTYL MAGNESIUM BROMIDEAND ITS SUBSEQUENT CONVERSION TO AN ALCOHOL To the reaction flask were added 2.5967 gram of magnesium turnings, about 20 mlof diglyme, and a solution of 13.5942 gram of butyl bromide in about 25 mldiglyme.The procedure as per the lab manual was initiated. After the required heating timewas completed the reaction mixture was allowed to cool to room temperature.Then a solution of 6.1123 gram of acetone in about 15 ml of diglyme was addeddropwise as per the lab manual.The rest of the lab manual procedure was completed, ultimately affording 2.5532gram of an oily, clear and slightly yellow liquid, presumed to be 2-methyl-2-hexanol. Boiling point as measured by distillation was 138 – 141 deg C.About 0.8 ml of the presumed 2-methyl-2-hexanol was placed in an NMR tube towhich was added 2 drops of TMS. The tube was capped, then inverted and righted20 times to thoroughly mix the product and…arrow_forwardPlease answer the question at the bottom, Thanks. LAB NOTES FOR PREPARATION OF BUTYL MAGNESIUM BROMIDEAND ITS SUBSEQUENT CONVERSION TO AN ALCOHOL To the reaction flask were added 2.5967 gram of magnesium turnings, about 20 mlof diglyme, and a solution of 13.5942 gram of butyl bromide in about 25 mldiglyme.The procedure as per the lab manual was initiated. After the required heating timewas completed the reaction mixture was allowed to cool to room temperature.Then a solution of 6.1123 gram of acetone in about 15 ml of diglyme was addeddropwise as per the lab manual.The rest of the lab manual procedure was completed, ultimately affording 2.5532gram of an oily, clear and slightly yellow liquid, presumed to be 2-methyl-2-hexanol. Boiling point as measured by distillation was 138 – 141 deg C.About 0.8 ml of the presumed 2-methyl-2-hexanol was placed in an NMR tube towhich was added 2 drops of TMS. The tube was capped, then inverted and righted20 times to thoroughly mix the product and…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Macroscale and Microscale Organic ExperimentsChemistryISBN:9781305577190Author:Kenneth L. Williamson, Katherine M. MastersPublisher:Brooks Cole
EBK A SMALL SCALE APPROACH TO ORGANIC LChemistryISBN:9781305446021Author:LampmanPublisher:CENGAGE LEARNING - CONSIGNMENT
Macroscale and Microscale Organic Experiments
Chemistry
ISBN:9781305577190
Author:Kenneth L. Williamson, Katherine M. Masters
Publisher:Brooks Cole
EBK A SMALL SCALE APPROACH TO ORGANIC L
Chemistry
ISBN:9781305446021
Author:Lampman
Publisher:CENGAGE LEARNING - CONSIGNMENT
O-Level Chemistry | 16 | Qualitative Analysis [1/3]; Author: Bernard Ng;https://www.youtube.com/watch?v=oaU8dReeBgA;License: Standard YouTube License, CC-BY