Laboratory Watch Glass

PREPARATION FOR CHEMISTRY LAB: A CHEMICAL SYNTHESIS
Chemical synthesis is the laboratory preparation of a chemical compound. New compounds, like medicines, can be tailor-made for specific uses. Natural compounds can be synthesized from cheaper them on a watch glass. Set the watch glass on a hot plate (very low heat) for about 10 min. ... Doc Retrieval

Common Apparatus And Procedures - Chemlab.truman.edu
Glass Funnels are for funneling liquids from one container to another or for filtering when equipped with filter paper. Graduated Cylinders are for measurement of an amount of liquid. The volume of liquid can be estimated to the nearest ... Access Doc

Preparation Of Malachite - Chymist.com
After filtering, remove the filter paper containing the precipitate, place on a watch glass, and allow to dry thoroughly. The total sample should be left to dry overnight or until the next laboratory class. You may have difficulty cleaning the green residue from the test tubes used for heating the samples. ... Visit Document

Chemistry 51 Experiment 11 Synthesis And Analysis Of Aspirin
7. Weigh a watch glass. Add the crystals and re-weigh. Calculate the weight of crude aspirin. Determine the percent yield. Test a small amount of this crude product for its melting point as described in Part II. Test the freshly made product for purity. Aspirin naturally decomposes into acetic acid over time so the purity test ... Doc Retrieval

EXPERIMENT 2: Recrystallization And Melting Point ...
May use a glass rod and a watch glass). Scoop a small amount of the powder into the opening of the melting point tube and gently tap the tube on the benchtop to move the sample down to the bottom (dropping the ... Read Content

SAFETY IN THE ACADEMIC LABORATORY - Chymist.com
SAFETY IN THE ACADEMIC LABORATORY David A. Katz Department of Chemistry manual and a laboratory notebook should be onmanual and a laboratory notebook should be on can easily be put out by covering it with a watch glass or beaker to smother the flames. ... View Document

Typical Laboratory Glassware - Eastern Michigan University
Typical Laboratory Glassware Beaker Buret and Stand Volumetric Flask Graduated Cylinder Crucible Tongs Erlenmeyer Flask Test Tubes and Test Tube Rack Wash Bottle Volumetric Pipet Graduated Pipet Bunsen Burner Ring Stand Funnel Spatula Watch Glass Test Tube Clamp Stirring Rod Medicine Dropper ... Fetch Here

The Making Of A Glass Boro Scientific Lab Coil Condenser ...
TheGlassConcierge.com - The making of a science labe glass piece. The technology from the scientific coil condenser has been ported to the smoking glassware ... View Video

CHEMISTRY LABORATORY EQUIPMENT - HCC
CHEMISTRY LABORATORY EQUIPMENT. with a milliliter scde meta with flexible dips ta collæt tM of LABORATORY BURNER to in or a sw.rd sizes with • FLASK TEST TUBE RING STAND WATCH GLASS beaker b. u.d in small Of liquid to hold a filter paper u.d in pwnng ... Return Doc

Introducing Measurements In The Laboratory
Thermometer, 400-mL beaker, stand and ring clamp, small watch glass, wire gauze, capillary tube, latex tubing, scoopula and unknown solids. Part A: Measuring the Dimensions of Regular Geometric Shapes 1. Check out a ruler from the stockroom. 2. Obtain a “shape sheet” from your instructor, and then use the ruler to measure the dimensions of the ... Get Doc

Keep Kids Safe Around Christmas, Hanukkah Decorations - News
Naellie Garcia, 3, daughter of Cesar and Rosalie Garcia of Pflugerville, smiles for a picture in front of the Christmas tree during Downtown Austin Alliance's Holiday Sing-Along and Downtown Stroll on Saturday. ... Read News

Lab #2 PHYSICAL SEPARATION TECHNIQUES Introduction
It is advisable to place a watch glass over the dish at this point to avoid loss of NaCl. When no water is seen condensing on the watch glass then the sample is dry. Allow the dish to cool and record its mass to find the mass of NaCl in the original mixture. 5. Percent by Mass. Determine the percent by mass of each component in your ... View Doc

Lab Equipment Activity - PC\\|MAC
Lab Equipment Activity Part A: Working with your lab partner, identify each of the pieces of laboratory equipment. Write the name of the lab equipment in the space by its picture, as Watch Glass _____ 6. Tongs _____ 7. Erlenmeyer Flask ... Fetch This Document

Section 2 - Laboratory Equipment And Functions
Watch glass Keeping liquid contents in a beaker from splattering Mortar & pestle Used to grind chemicals to powder!!!!! Section 2: Laboratory Equipment and Functions!2 of !5 Iron ring Supports a beaker over a bunsen burner. Wire gauze ... Access This Document

Pre-lab Exercise Preparation Of Aspirin (Complete And Check ...
Pre-lab exercise Preparation of Aspirin (Complete and check answers before coming to lab) 1. During the preparing aspirin lab activity, a student attempts to determine how much mass of watch glass + filter paper 34.63 g . mass of watch glass, filter paper and aspirin 38.29 g . ... Visit Document

Glass Rod - Wikipedia
A glass stirring rod, glass rod, stirring rod or stir rod is a piece of laboratory equipment used to mix chemicals and liquids for laboratory purposes. They are usually made of solid glass, about the thickness and slightly longer than a drinking straw, with rounded ends. ... Read Article

Chemistry Laboratory Striking It Rich-Penny Lab
Beaker and place a watch glass on it. Zinc chloride solution is very caustic -it damages skin. If any of it gets on your skin. Immediately wash the affected area with cold tap water. Notify you teacher. 5. Heat the beaker gently with the Bunsen burner until the solution just begins to bubble. Then lower the burner flame to continue gently bubbling. ... Retrieve Document

Laboratory Safety - University Of Washington
Near an open flame. If you do ignite your ethanol, promptly cover it with a watch glass to suffocate the flame. Alternatively, you may put out the flame with water. Once you have sterilized your loop, be sure not to touch the end that was in the flame. It will still be hot, and you will also contaminate your freshly cleaned loop. ... Retrieve Full Source

Chapter 4 - 1 CHAPTER 4 -- THE LABORATORY INTRODUCTION
CHAPTER 4 -- THE LABORATORY INTRODUCTION but laboratory instruction is so important to the learning of chemistry, it must be done. Watch glass 6 . Wire gauze 7. Evaporating dish 8. Beaker 9. Graduated cylinder 10. Spatula 11. ... Access Content

Laboratory Safety - USC Upstate: Faculty
It onto a clean watch glass or filter paper by gentle rotation of the bottle. To transfer a solid material to a test tube, first place the solid on a creased narrow strip of paper. ... Content Retrieval

The Next Foldable Phone Could Use This Flexible Glass
The makers of Gorilla Glass gave us an exclusive look the ultra-thin bendable glass that could help protect the next wave of foldable phones. ... Read News

Substances And Mixtures:Separating A Mixture Into Its Components
Take the watch glass and the beaker containing the mixture to the top-loading balance, place the watch glass on the balance pan (don't forget to re-zero the balance!), and transfer about 5 g of the mixture from the beaker to the watch glass. Determine and record the precise mass of the mixture in the watch glass. Label a 50-mL beaker, "iron". ... Doc Retrieval

Glassware And Equipment
Glassware and Equipment The equipment in the laboratory at y our work station is housed in three cabinets. Two of the cabinets can be locked and contain a variety of glassware. ... Fetch Content

TEST METHOD FOR THE DETERMINATION OF PH VALUE OF WATER OR ...
2.1 A 0.1 pt. (50 mL), wide-mouth glass beaker with a watch glass for cover. If lightweight material is to be tested, it may be necessary to increase beaker size up to a maximum of 0.5 pt. (250 mL). 2.2 A pH meter, suitable for laboratory or field analysis, with either one or two electrodes. ... Return Document

Pipette - Wikipedia
A pipette (sometimes spelled pipet) is a laboratory tool commonly used in chemistry, biology and medicine to transport a measured volume of liquid, often as a media dispenser.Pipettes come in several designs for various purposes with differing levels of accuracy and precision, from single piece glass pipettes to more complex adjustable or electronic pipettes. ... Read Article