The correct answer is: [C]: " mg " {"milligrams"} .
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What is the relationship between wavelength, frequency and energy? The energy of a wave is directly proportional to its frequency, but inversely proportional to its wavelength. In other words, the greater the energy, the larger the frequency and the shorter (smaller) the wavelength.
3 answer for number 3.4 is the answer for number 4
You cannot find it if you do not know the information. Was there a molar mass given or do you know if it is asking for the molar mass?
Answer:
Explanation:
The correct structure for the compound C5H10Br2 is:
Br -- CH₂ -- CH₂ -- CH₂ -- CH₂ -- CH₂ -- Br
1 2 3 4 5
The name of the required compound is 1,5-dibromopentane.
The DEPT spectroscopy is applied to differentiate between CH₃, CH₂, and CH groups.
Assuming the DEPT is up, this shows a positive peak which illustrates CH₃ group
Assuming the DEPT is down, this shows a negative peak which illustrates CH₂ or CH group
C-13 NMR with DEPT-135
- The negative peak in DEPT at 26.77 ppm illustrates CH₂ or CH
- The negative peak at 31.85 ppm illustrate CH₂ or CH
- The negative peak at 33.24 ppm illustrate CH₂ or CH
The carbon analysis is:
Assign ppm
1 33.24
2 31.85
3 26.77
4 31.85
5 33.24
