Perform the following calculations; express each number and the answer in exponential form and with the appropriate number of significant figures. a. 320 × 24.9 0.080 = b. 432.7 × 9.5 × 0.002300 62 × 0.103 = c. 32.44 × 4.9 − 0.304 82.94 = d. 8.002 + 0.3040 13.4 − 0.066 + 1.02 =
Perform the following calculations; express each number and the answer in exponential form and with the appropriate number of significant figures. a. 320 × 24.9 0.080 = b. 432.7 × 9.5 × 0.002300 62 × 0.103 = c. 32.44 × 4.9 − 0.304 82.94 = d. 8.002 + 0.3040 13.4 − 0.066 + 1.02 =
Perform the following calculations; express each number and the answer in exponential form and with the appropriate number of significant figures. a.
320
×
24.9
0.080
=
b.
432.7
×
9.5
×
0.002300
62
×
0.103
=
Don't used hand raiting and don't used Ai solution
13.84. Chlorine atoms react with methane, forming HCI
and CH3. The rate constant for the reaction is
6.0 × 107 M¹ s¹ at 298 K. When the experiment
was run at three other temperatures, the following data
were collected:
T (K)
k (M-1 s-1)
303
6.5 × 107
308
7.0 × 107
313
7.5 x 107
a. Calculate the values of the activation energy and the
frequency factor for the reaction.
b. What is the value of the rate constant in the lower
stratosphere, where T = 218 K?
My Organic Chemistry textbook says about the formation of cyclic hemiacetals, "Such intramolecular reactions to form five- and six-membered rings are faster than the corresponding intermolecular reactions. The two reacting functional groups, in this case OH and C=O, are held in close proximity, increasing the probability of reaction."According to the book, the formation of cyclic hemiacetals occurs in acidic conditions. So my question is whether the carbonyl group in this reaction reacts first with the end alcohol on the same molecule or with the ethylene glycol. And, given the explanation in the book, if it reacts first with ethylene glycol before its own end alcohol, why would it? I don't need to know the final answer. I need to know WHY it would not undergo an intermolecular reaction prior to reacting with the ethylene glycol if that is the case. Please do not use an AI answer.
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
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