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1HNMR spectrum of an organic compound recorded on a 400 MHz spectrometer exhibits quartet with line positions at 1760, 1750, 1730Hz. The chemical shift of quartet is ______ ppm. (Round off to two decimal places).
Correct answer is between '4.30,4.40'. Can you explain this answer?
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1HNMR spectrum of an organic compound recorded on a 400 MHz spectromet...
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1HNMR spectrum of an organic compound recorded on a 400 MHz spectromet...
Chemical shift is a measure of the magnetic field experienced by a nucleus in a molecule relative to a standard reference compound. It is expressed in parts per million (ppm) and is used to identify the chemical environment of a nucleus in a molecule.
To calculate the chemical shift in ppm, we need to determine the difference between the frequency of the quartet and the frequency of the reference compound, and then divide that difference by the frequency of the spectrometer.
The line positions of the quartet in the 1HNMR spectrum are given as 1760, 1750, and 1730 Hz. We can calculate the chemical shift by taking the average of these three values.
The average of the line positions is (1760 + 1750 + 1730) / 3 = 1746.67 Hz.
Now, we need to determine the difference between the frequency of the quartet and the frequency of the reference compound. The reference compound typically used for 1HNMR is tetramethylsilane (TMS), which has a chemical shift of 0 ppm.
The difference is calculated as follows:
Difference = 1746.67 Hz - 0 Hz = 1746.67 Hz.
Finally, we divide the difference by the frequency of the spectrometer to obtain the chemical shift in ppm.
Chemical shift (ppm) = (Difference / Spectrometer frequency) * 10^6
The spectrometer frequency is given as 400 MHz, so we substitute the values into the equation:
Chemical shift (ppm) = (1746.67 Hz / 400 MHz) * 10^6 = 4366.67 ppm.
Rounding off to two decimal places, the chemical shift is approximately 4366.67 ppm, which falls between 4.30 and 4.40 ppm.
Therefore, the correct answer is between 4.30 and 4.40 ppm.
To calculate the chemical shift in ppm, we need to determine the difference between the frequency of the quartet and the frequency of the reference compound, and then divide that difference by the frequency of the spectrometer.
The line positions of the quartet in the 1HNMR spectrum are given as 1760, 1750, and 1730 Hz. We can calculate the chemical shift by taking the average of these three values.
The average of the line positions is (1760 + 1750 + 1730) / 3 = 1746.67 Hz.
Now, we need to determine the difference between the frequency of the quartet and the frequency of the reference compound. The reference compound typically used for 1HNMR is tetramethylsilane (TMS), which has a chemical shift of 0 ppm.
The difference is calculated as follows:
Difference = 1746.67 Hz - 0 Hz = 1746.67 Hz.
Finally, we divide the difference by the frequency of the spectrometer to obtain the chemical shift in ppm.
Chemical shift (ppm) = (Difference / Spectrometer frequency) * 10^6
The spectrometer frequency is given as 400 MHz, so we substitute the values into the equation:
Chemical shift (ppm) = (1746.67 Hz / 400 MHz) * 10^6 = 4366.67 ppm.
Rounding off to two decimal places, the chemical shift is approximately 4366.67 ppm, which falls between 4.30 and 4.40 ppm.
Therefore, the correct answer is between 4.30 and 4.40 ppm.
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1HNMR spectrum of an organic compound recorded on a 400 MHz spectrometer exhibitsquartet with line positions at 1760, 1750, 1730Hz. The chemical shift of quartet is ______ ppm. (Round off to two decimal places).Correct answer is between '4.30,4.40'. Can you explain this answer?
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1HNMR spectrum of an organic compound recorded on a 400 MHz spectrometer exhibitsquartet with line positions at 1760, 1750, 1730Hz. The chemical shift of quartet is ______ ppm. (Round off to two decimal places).Correct answer is between '4.30,4.40'. Can you explain this answer? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about 1HNMR spectrum of an organic compound recorded on a 400 MHz spectrometer exhibitsquartet with line positions at 1760, 1750, 1730Hz. The chemical shift of quartet is ______ ppm. (Round off to two decimal places).Correct answer is between '4.30,4.40'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 1HNMR spectrum of an organic compound recorded on a 400 MHz spectrometer exhibitsquartet with line positions at 1760, 1750, 1730Hz. The chemical shift of quartet is ______ ppm. (Round off to two decimal places).Correct answer is between '4.30,4.40'. Can you explain this answer?.
1HNMR spectrum of an organic compound recorded on a 400 MHz spectrometer exhibitsquartet with line positions at 1760, 1750, 1730Hz. The chemical shift of quartet is ______ ppm. (Round off to two decimal places).Correct answer is between '4.30,4.40'. Can you explain this answer? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about 1HNMR spectrum of an organic compound recorded on a 400 MHz spectrometer exhibitsquartet with line positions at 1760, 1750, 1730Hz. The chemical shift of quartet is ______ ppm. (Round off to two decimal places).Correct answer is between '4.30,4.40'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 1HNMR spectrum of an organic compound recorded on a 400 MHz spectrometer exhibitsquartet with line positions at 1760, 1750, 1730Hz. The chemical shift of quartet is ______ ppm. (Round off to two decimal places).Correct answer is between '4.30,4.40'. Can you explain this answer?.
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