Using a 60 MHz spectrometer, the protons in dichloromethane appear at 5.30 ppm. When the same sample is placed in a 100 MHz instrument, where does the signal appear?

A) 8.33
B) 5.30
C) 3.18
D) cannot be determined from information given

Question

Arlene Dacpano · Accepted Answer

Final Answer : B, Explanation :  The chemical shift in NMR spectroscopy is independent of the spectrometer's frequency. It is a relative measurement compared to a standard reference, so the signal for dichloromethane's protons will still appear at 5.30 ppm regardless of the spectrometer's frequency.

Using a 60 MHz spectrometer, the protons in dichloromethane appear at 5.30 ppm. When the same sample is placed in a 100 MHz instrument, where does the signal appear?

A) 8.33
B) 5.30
C) 3.18
D) cannot be determined from information given

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Learning Objectives

Related questions

Using a 60 MHz spectrometer, the protons in dichloromethane appear at 5.30 ppm. When the same sample is placed in a 100 MHz instrument, where does the signal appear?A) 8.33B) 5.30C) 3.18D) cannot be determined from information given

Definitions

Learning Objectives

Learning Objectives

Related questions

Using a 60 MHz spectrometer, the protons in dichloromethane appear at 5.30 ppm. When the same sample is placed in a 100 MHz instrument, where does the signal appear?

A) 8.33
B) 5.30
C) 3.18
D) cannot be determined from information given