Consider the following experiments, and answer the questions pertaining to classification: a. A pure substance R is heated, cooled, put under pressure, and exposed to light but does not change into anything else. What can be said about classifying substance R as an element or a compound? Explain your reasoning. b. Upon heating, solid pure substance T gives off a gas and leaves another solid behind. What can be said about classifying substance T as an element or compound? Explain your reasoning c. What can be said about classifying the solid left in part b as an element or compound? Explain your reasoning.
Consider the following experiments, and answer the questions pertaining to classification: a. A pure substance R is heated, cooled, put under pressure, and exposed to light but does not change into anything else. What can be said about classifying substance R as an element or a compound? Explain your reasoning. b. Upon heating, solid pure substance T gives off a gas and leaves another solid behind. What can be said about classifying substance T as an element or compound? Explain your reasoning c. What can be said about classifying the solid left in part b as an element or compound? Explain your reasoning.
Solution Summary: The author explains that the classification of pure substance R cannot be made due to lack of information.
Consider the following experiments, and answer the questions pertaining to classification:
a. A pure substance R is heated, cooled, put under pressure, and exposed to light but does not change into anything else. What can be said about classifying substance R as an element or a compound? Explain your reasoning.
b. Upon heating, solid pure substance T gives off a gas and leaves another solid behind. What can be said about classifying substance T as an element or compound? Explain your reasoning
c. What can be said about classifying the solid left in part b as an element or compound? Explain your reasoning.
Using the graphs could you help me explain the answers. I assumed that both graphs are proportional to the inverse of time, I think. Could you please help me.
Synthesis of Dibenzalacetone
[References]
Draw structures for the carbonyl electrophile and enolate nucleophile that react to give the enone below.
Question 1
1 pt
Question 2
1 pt
Question 3
1 pt
H
Question 4
1 pt
Question 5
1 pt
Question 6
1 pt
Question 7
1pt
Question 8
1 pt
Progress:
7/8 items
Que Feb 24 at
You do not have to consider stereochemistry.
. Draw the enolate ion in its carbanion form.
• Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner.
⚫ Separate multiple reactants using the + sign from the drop-down menu.
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4
Shown below is the mechanism presented for the formation of biasplatin in reference 1 from the Background and Experiment document. The amounts used of each reactant are shown. Either draw or describe a better alternative to this mechanism. (Note that the first step represents two steps combined and the proton loss is not even shown; fixing these is not the desired improvement.) (Hints: The first step is correct, the second step is not; and the amount of the anhydride is in large excess to serve a purpose.)
Chapter 1 Solutions
Chemistry for Today: General, Organic, and Biochemistry
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