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CHEM 121 Final Exam With Solution
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CHEM 121 Final Exam With Solution...
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CHE M 121 Fin al E xam With S olution What are the different levels of energy? - ANSWER 1s < 2s < 2p < 3s < 3p < 4s < 3d < 4p < 5s < 4d < 5p < 6s How do you convert Celsius to Fahrenheit? - ANSWER Fahrenheit = (Celsius x 9/5) + 32 How do you convert Fahrenheit to Celsius? - ANSWER Celsius = (Fahrenheit - 32) x 5/9 How do you convert Celsius to Kelvin? - ANSWER Kelvin = Celsius + 273.15 How do you convert Kelvin to Celsius? - ANSWER Celsius = Kelvin - 273.15 How do you convert Fahrenheit to Kelvin? - ANSWER Kelvin = (Fahrenheit + 459.67) x 5/9 How do you convert Kelvin to Fahrenheit? - ANSWER Fahrenheit = (Kelvin x 9/5) - 459.67 What is Hess's Law? - ANSWER 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? - ANSWER 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? - ANSWER 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? - ANSWER Tells us the 3D orientation of the orbital in space. What is the electron spin quantum number ms? - ANSWER Tells us the spin direction of the electron, +1/2 or -1/2 What is the angular momentum quantum number l? - ANSWER This tells us the shape.The benefits of buying summaries with Stuvia:
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