Questions: Text Alternative H-C-H Multiple Choice Question What are the appropriate bond angles in formaldehyde shown? 180° 109.5° 120° Rate your confidence to submit your answer. High Medium Low Read About the Concept Need help? Review these concept resources. © 2021 McGraw Hill. All Rights Reserved. Privacy Center Terms of Use

Text Alternative H-C-H Multiple Choice Question What are the appropriate bond angles in formaldehyde shown? 180° 109.5° 120° Rate your confidence to submit your answer. High Medium Low Read About the Concept Need help? Review these concept resources. © 2021 McGraw Hill. All Rights Reserved. Privacy Center Terms of Use
Transcript text: Text Alternative H-C-H Multiple Choice Question What are the appropriate bond angles in formaldehyde shown? 180° 109.5° 120° Rate your confidence to submit your answer. High Medium Low Read About the Concept Need help? Review these concept resources. © 2021 McGraw Hill. All Rights Reserved. Privacy Center Terms of Use
failed

Solution

failed
failed

Solution Steps

Step 1: Identify the Molecular Geometry of Formaldehyde

Formaldehyde (HCHO) is a simple aldehyde with the chemical structure H-C-H, where the carbon atom is double-bonded to an oxygen atom (C=O) and single-bonded to two hydrogen atoms. The central carbon atom is bonded to three atoms and has no lone pairs, which suggests a trigonal planar geometry.

Step 2: Determine the Bond Angles for Trigonal Planar Geometry

In a trigonal planar molecular geometry, the bond angles around the central atom are typically 120°. This is because the atoms are arranged in a plane, and the angles between them are equal to minimize repulsion according to VSEPR (Valence Shell Electron Pair Repulsion) theory.

Step 3: Select the Correct Answer

Given the options:

  • 180°: This angle is typical for linear geometry, not applicable here.
  • 109.5°: This angle is typical for tetrahedral geometry, not applicable here.
  • 120°: This angle is typical for trigonal planar geometry, which matches the structure of formaldehyde.

Final Answer

The appropriate bond angles in formaldehyde are \(\boxed{120^\circ}\).

Was this solution helpful?
failed
Unhelpful
failed
Helpful

Questions asked by other users

failedAnswered
Multiple Choice The period of time during which a surviving spouse does not qualify for Social Security survivor or retirement benefits is called: A. The Waiting Period B. The Elimination Period C. The Blackout Period D. The Restricted Period Submit
failedAnswered
If 600 is increased by 9%, determine the amount of the increase and the new amount. Part 1 of 2 (a) When 600 is increased by 9%, find the amount of increase. The amount of increase is .
failedAnswered
Find the determinant of this (3 times 3) matrix using expansion by minors about the first column. [ A=left[ beginarrayrrr 9 -2 9 5 4 9 9 1 7 endarray right] ] [ A=left beginarrayrrr 9 -2 9 5 4 9 9 1 7 endarray right ]
failedAnswered
Use the nth-term test for divergence to show that the series is divergent, or state that the test is inconclusive. The series is ∑ from n=1 to ∞ of n/(n+5). A. The test is inconclusive. B. The series diverges.
failedAnswered
Pergunta 5 Um oscilador harmônico amortecido tem equação de movimento dada por: x(t)=0,10 e^(-0,25 t) cos(4 pi t-0,82), com x(t) dado em metros e t em segundos. a) A amplitude do movimento é igual a m. b) A frequência do sistema é igual a Hz. c) A fase inicial é igual a rad. d) O periodo de oscilação é igual a s. e) A constante de tempo de amortecimento é igual a s.