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Reaction of 2-methyl-1,3-butadiene with bromine yields a mixture of products: 3,4-
dibromo-2-methyl-1-butene (3 %), 3,4-dibromo-3-methyl-1-butene (21 %) and 1,4-
dibromo-2-methyl-2-butene (76 %).
a) Identify all products as either 1,2 or 1,4 adducts. (3)
b) Propose mechanisms for the formation of all 3 products. (9)
c) Explain why 3,4-dibromo-3-methyl-1-butene (21 %) predominates over 3,4-dibromo-2-
methyl-1-butene (3 %).
The piston of a hydraulic automobile lift is 30 cm in diameter. What pressure, in
pascals, is required to lift a car of mass 1500 kg. Also express this pressure in
atmosphere.
A diving bell is to be designed to withstand the pressure of water at a depth of
2000 ft.
a. If sea water weighs 64 lb per cubic foot, what is the pressure at the depth?
b. What is the total force on a circular glass window 6 inches in diameter?
A certain body weighs 12N in air and 10 N in when immersed in water. Find its
total volume and its density.
When the United States finally converts officially to metric units, the Celsius
temperature scale will replace the Fahrenheit scale for everyday use. As a
familiarization exercise, find the Celsius temperature corresponding to
a. Cool room (68°F)
b. A hot summer day (95°F) and
c. A cold winter day (5°F)
Show, by the use of the truth table/matrix, that the statement (p v q) v [( ¬p) ∧ (¬q)] is a tautology.
I want to vaporize or turn ethanol into a gas, to burn in a fire pit. I it take a propane bottle and pump air into the bottom and have a gas outlet at the top...will it be able to create enough gas to burn as the air moves through the liquid ethanol inside the tank?
Write a C++ program that reads 10 integer numbers and stores them in an array Numbers, sorts the numbers using the bubble sort algorithm, and displays the array elements whenever there is an element swap. This C++ program must have three functions: 1. reading the array's ten elements, 2. displaying the array's elements, 3. The array elements are being sorted.
Why should decision makers set MB equal to MC?
In the circular flow of income and spending financial institutions?
