2024 CHEM 121 Final Exam
What are the different levels of energy? - 1s < 2s < 2p < 3s < 3p < 4s < 3d < 4p < 5s < 4d < 5p < 6s
How do you convert Celsius to Fahrenheit? - Fahrenheit = (Celsius x 9/5) + 32
How do you convert Fahrenheit to Celsius? - Celsius = (Fahrenheit - 32) x 5/9
How do you convert Celsius to Kelvin? - Kelvin = Celsius + 273.15
How do you convert Kelvin to Celsius? - Celsius = Kelvin - 273.15
How do you convert Fahrenheit to Kelvin? - Kelvin = (Fahrenheit + 459.67) x 5/9
How do you convert Kelvin to Fahrenheit? - Fahrenheit = (Kelvin x 9/5) - 459.67
What is Hess's Law? - When reactants are converted to products,
the enthalpy of the reaction is the same, no matter if it occurs in one step, or a series of steps.
What is the Pauli Exclusion Principle? - Each electron has a set of 4 numbers, called quantum numbers
(q.n.'s.) that specify it completely. No two electrons in the same atom can have the same 4 q.n.'s. The
primary quantum number n tells you which of the main energy levels you are in.
What is the principle of quantum number n? - Describes the distance of the orbital from the nucleus.
The larger the value the larger the distance of the electron.
What is the magnetic quantum number ml? - Tells us the 3D orientation of the orbital in space.