The Frequency of the Stretching Vibration of a Bond in IR

question 14

Multiple Choice

The frequency of the stretching vibration of a bond in IR spectroscopy depends on what two quantities?

• A) the stiffness of the bond and the electronegativity of the atoms
• B) the electronegativity of the atoms and the nuclear charges of the atoms
• C) the masses of the atoms and the stiffness of the bond
• D) the nuclear charges of the atoms and the atomic radii
• E) the electronegativity of the atoms and the masses of the atoms

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Definitions:

Positive Correlation Condition

A condition where two variables increase or decrease in parallel, indicating a direct relationship between them.

Placebo Effect

A psychological phenomenon where patients experience real improvements in their condition after receiving a treatment with no therapeutic value, simply because they believe it is effective.

Participants' Expectations

Refers to the beliefs or assumptions held by individuals participating in a study about what will happen to them or what they are supposed to do, which can influence the outcomes of research.

Single-blind Study

A research experimental design in which the participants do not know which group (experimental or control) they are in, to prevent bias, while the researchers do.