How long will it take for the concentration to drop
For a first-order reaction, it takes 22.2s for the concentration of reactant A to drop from 1.00 to 0.333M. Starting with [A]=0.650M, how long will it take for the concentration to drop to 0.325M?
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Determine the ratio of the mass flow rates of the hot to cold water. Assume the heat losses from the mixing chamber to be negligible and the mixing to take place at a pressure of 20 psia.
Consequently, he always carries his umbrella if rain is forecast. Moreover, he even carries his umbrella one time out of three if rain is not forecast. Calculate the probability that it is raining and Mr. X does not have his umbrella.
A student throws a ball vertically upward such that it travels 6.9 m to its maximum height,If the ball is caught at the initial height 2.1 second after being thrown, what is the ball's average speed and average velocity?
A 1.0-mL volume of .010 M H2SO3 is added to amixture of 12 drps of .01 M HIO3, 8 drops of deionized water, and 1drop of starch solution. A color change in the reaction mixture occurred in 40 seconds.
(a) Determine the minimum weight of block C to keep A from sliding if µs between A and the table is 0.21. (b) Block C suddenly is lifted off A. What is the acceleration of block A if µk between A and the table is 0.11?
A commuter has two vehicles, one being a compact car and the other one a minivan. Three times out of four, he uses the compact car to go to work and the remainder of the time he uses the minivan. When he uses the compact car (resp. the minivan), h
Do you agree with their stated "friction resistance" for 100 ft of horizontal pipe? What is the "friction resistance" in terms used in our course?
Suppose that machines M1, M2, and M3 produce, respectively, 500, 1000, and 1500 parts per day, of which 5%, 6%, and 7% are defective. A part produced by one of these machines is taken at random, at the end of a given workday, and it is found to be
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