Question

Calculate the bond length between two carbon atoms in ethene (C2H4), given that the distance between the nuclei of the carbon atoms is 1.33 angstroms and the bond angle between them is 121.7 degrees. Use the formula for calculating bond length based on the bond angle and distance between nuclei.

Answer 1

To calculate the bond length between two carbon atoms in ethene, we can use the formula based on the bond angle and distance between nuclei:Bond length = Distance between nuclei * sin Bond angle / 2 First, we need to convert the bond angle from degrees to radians:121.7 degrees *   / 180   2.123 radiansNow, we can plug the values into the formula:Bond length = 1.33  * sin 2.123 / 2 Bond length  1.33  * sin 1.0615 Bond length  1.33  * 0.874Bond length  1.16 So, the bond length between the two carbon atoms in ethene is approximately 1.16 angstroms.