The Organic Chem Lab Survival Manual: A Student's Guide to Techniques
10th Edition
ISBN: 9781118875780
Author: James W. Zubrick
Publisher: WILEY
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Textbook Question
Chapter 3, Problem 1E
Look up the physical properties of several of the compounds you will be making in your lab from several different places on the Internet. Do you believe them all to be correct?
Expert Solution & Answer
Interpretation Introduction
Interpretation:
Look up the physical properties of several of the compounds which will be making in chemistry lab from several different places on the Internet, do you believe them all to be correct or not is to be explained.
Concept Introduction:
Properties of Organic Compounds:Organic compounds are those whosechemicalformula have at least one carbon atom, and often contain a hydrogen atom as well. The bonds formed between the carbon and hydrogen atoms to form a hydrocarbon arevery strong and the resulting compoundis often essential to living things. They show characteristics of covalent compounds like they have low meltingand boiling points and generally insoluble in water but soluble in organic solvents.
Answer to Problem 1E
No, not all thephysical properties of several of the compounds which will be making in chemistry lab from several different places on the Internet are correct.
Explanation of Solution
Physical properties of compounds typically of interest include both quantitative and qualitative features. Quantitative properties include melting point, boiling point, index of refraction, etc. and qualitative properties include odor, consistency, solubility, and color, etc.
Values of physical properties are slightly different, on different websites. For example, boiling point of benzoic acid on Wikipedia is 250℃ while on chemfinder its 249℃.
Thephysical properties of several of the compounds which will be making in chemistry lab from several different places on the Internet are notexactly same but values of theses physical properties slightly varies.
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students, deduce possible…
You are doing a lab on Charles Law and determining if the law is valid or not. However, you are seeing a big error and your data don’t agree with the outcome of your experimental results. Your professor says Charles was right and you are wrong. Attribute TWO possible errors you might have committed
There are four sketches below. The first sketch shows a sample of Substance X. The three sketches underneath it show three different changes to the sample.
You must decide whether each of these changes is possible. If a change is possible, you must also decide whether it is a physical change or a chemical change.
Each sketch is drawn as if the sample were under a microscope so powerful that individual atoms could be seen. Also, you should assume that you can see the
entire sample, and that the sample is in a sealed box, so that no matter can enter or leave.
Sample of Substance X
Change 1
Change 1 is
O impossible
O
O a chemical change
a physical change
Change 2
Change 2 is:
impossible
O a physical change
O a chemical change
Change 3
000 000
Change 3 is:
O impossible
O a physical change
O a chemical change
X
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The Organic Chem Lab Survival Manual: A Student's Guide to Techniques
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