Solution Found!
Determine the molecular formula for each of the
Chapter 5, Problem 1P(choose chapter or problem)
Problem 1P
Determine the molecular formula for each of the following:
a. a 5-carbon hydrocarbon with one π bond and one ring.
b. a 4-carbon hydrocarbon with two π bonds and no rings.
c. a 10-carbon hydrocarbon with one π bond and two rings.
Questions & Answers
QUESTION:
Problem 1P
Determine the molecular formula for each of the following:
a. a 5-carbon hydrocarbon with one π bond and one ring.
b. a 4-carbon hydrocarbon with two π bonds and no rings.
c. a 10-carbon hydrocarbon with one π bond and two rings.
ANSWER:
Solution:
Here we will have to determine the molecular formula of each of the following.
What is the molecular formula: - Molecular formula is a representation of a molecule which will show the total number and kind of atoms involved in it without showing the structural arrangement of the molecule.
Step 1
a. A 5-carbon hydrocarbon with one π bond and one ring
The general molecular formula of hydrocarbon is CnH2n+2
Here n = 5, so if we will write the possible molecular formula by using the general formula, it will be: C5H25+2 = C5H12
But in question, it has been given that the molecule contains one bond and one ring that means we have to subtract four H-atoms from the above molecular formula.
Thus the required molecular formula is C5H8 which has one bond and one ring.