LABORATORY TECHNIQUES IN ORGANIC CHEMIS
4th Edition
ISBN: 2819260096009
Author: Mohrig
Publisher: MPS PUB
expand_more
expand_more
format_list_bulleted
Question
Chapter 4, Problem 5Q
Interpretation Introduction
Interpretation:
The method that can be utilized to dry the glassware when it is dirty before the beginning of the reaction should be determined.
Concept introduction:
Glasswares are the equipment that is made up of glass and are used for scientific work in the laboratories. The glassware is used in the laboratories because of their low coefficient of expansion and high resistance to chemical attack.The glassware used in the laboratory is dried before their use in a
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Differentiate volumetric solution and test solution
How to separate potassium nitrate and sodium chloride solution?
Crystallization is a type of purification method.
Chapter 4 Solutions
LABORATORY TECHNIQUES IN ORGANIC CHEMIS
Knowledge Booster
Similar questions
- When you are dispensing stock solution into your graduated cylinder, you find that you have poured out too much solution. What is the best thing to do with the excess solution? O use the whole amount in the experiment om O pour into the waste container O pour back into the stock bottle O pour down the sink drain aarrow_forwardAfter adding 50 mL of NaOH solution, but he sample in the flask still had not turned pink. What error did the student make?arrow_forwardWhat's In I. True or False. Write true if the statement is correct and false if it is incorrect. Use separate paper for your answers. 1. In sterilization process, alcohol solution should be 70%-90%. 2. It is very important to observe safety rules in sanitizing tools and equipment. 3. First thing to do in the preparation of metal implements is to soak the tools in cold soapy water. 4. Remove immediately tools and implements from disinfectant solution. 5. In storing tools and implements keep unclean and dull. 6. All hair, used cotton or other waste materials must be removed from the floor right away, and deposit it in a closed container. 7. Each beautician must wear a washable uniform while serving clients. 8. Only VIP's client must be provided with a freshly laundered towel. 9. Finger bowls must be sanitized before another client use them. 10. All waste materials should be disposed of in an enclosed waste bin fitted with polythene bin liner, durable enough to resist tearing.arrow_forward
- 3. Clearly explain how you could use the displacement method to determine the density of an irregular solid which floats in water. 4. Discuss some of the possible errors in finding the density of a liquid using the techniques in this experiment. 5. Think about a person floating in a body of water. What would you expect to be the difference between floating in Lake Michigan (fresh water) and in the Atlantic Ocean (3.5% salt solution)? Explain your answer.arrow_forwardWhat is the narrow graduated piece of glass equipment called? Why do you use an Erlenmeyer flask instead of a beaker to collect the solution? Why do you need a white piece of paper? What is the part called that you adjust to change the flow of solution out? What is the name of the curved surface of a liquid in a tube called?arrow_forwardVolumetric Analysis: Determination of Acetic Acid in Vinegar You measured the vinegar volumetrically in procedure B1, what piece of data was needed to determine the volume needed from the mass of vinegar?arrow_forward
- What hazards are involved in evaporating a solvent from a solution in a laboratory environment?arrow_forwardWhy should you know the composition of the weighing form? a. So that it can be washed properly b. So that the molar mass is known c. So that it can be filtered properlyarrow_forward1. Place a few crystals of bismuth trichloride in a test tube and add 3 ml of water. Observations: What change takes place? Write the equation for the reaction. Test the solution with litmus paper. What is the result? What causes this change? Add to the solution concentrated hydrochloric acid (CAUTION: CONCENTRATED HYDROCHLORIC ACID IS CORROSIVE AND CAN BURN THE SKIN!) a drop at a time with constant shaking until a change is observed. Observations: Give the effect of the following on the direction of the reversible reaction: a) adding more water: b) adding more HCl:arrow_forward
- Caution: Make sure to avoid contact with the hot plate/gas burner or the pan when it is hot to avoid getting burned. Procedure: 1. Put 1 spoon of salt in a pan with 1 glass of water. 2. Stir the solution and cover once done. 3. Place pan at the gas burner and let it boil until no water is left in the pan. (Note: If using hot plate, put the pan on top of the hot plate and set the temperature to hot mode.)arrow_forwardIdentify which of the following mixtures needs stirring,cruhing and heat. enrgy (temperature)to dissolve solutes faster.write the correct answer on your answer sheet. 1.solid sugar and water 2.rock salt and water 3.sugar and calamansi juice 4.powder soap and water 5.solid chalk and waterarrow_forward2. Water is the universal solvent. A. Why is water considered the greatest solvent on Earth? B. Draw and label the mixture of oil and salt placed inside a test tube.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- World of ChemistryChemistryISBN:9780618562763Author:Steven S. ZumdahlPublisher:Houghton Mifflin College DivChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
World of Chemistry
Chemistry
ISBN:9780618562763
Author:Steven S. Zumdahl
Publisher:Houghton Mifflin College Div
Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:Cengage Learning