The number of vibrational modes in acetaldehyde is
Question
The number of vibrational modes in acetaldehyde is
Solution
The number of vibrational modes in a molecule can be calculated using the formula 3N-6 for non-linear molecules, where N is the number of atoms in the molecule.
Acetaldehyde (CH3CHO) has 4 atoms of Hydrogen, 2 atoms of Carbon, and 1 atom of Oxygen, for a total of 7 atoms.
Substituting N=7 into the formula gives:
3*7 - 6 = 21 - 6 = 15
So, acetaldehyde has 15 vibrational modes.
Similar Questions
The total number of aldehydes structural having the molecular formula C5H10O is -
Which functional group is present in aldehydes and ketones?
At 518oC, the rate of decomposition of a sample of gaseous acetaldehyde, initially at a pressure of 363Torr, was 1.00Torrs−1 when 5% had reacted and 0.5Torr s−1 when 33% had reacted. The order of the reaction is:
Correct order of carbonyl stretching frequency is(1 Ponto)acetone > formaldehyde >ethanoyl chloride > acetaldehydeethanoyl chloride> formaldehyde > acetaldehyde > acetoneacetone < formaldehyde < ethanoyl chloride < acetaldehydeethanoylchloride< formaldehyde < acetaldehyde < acetone
Number of vibrational degrees of freedom for benzene will be(1 Ponto)12133031
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.