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A fugitive tries to hop on a freight train traveling at a constant speed of5.0m/s. Just as an empty box car passes him, the fugitive starts from rest and accelerates ata=2.5m/s2to his maximum speed of 8 m/s.
(a) How long does it take him to catch up to the empty box car?
(b) What is the distance traveled to reach the box car?
Greg Nard added an equivalent of 3,4-epoxy-4-methylcyclohexanol to an ether solution of methyl magnesium bromide and then added dilute hydrochloric acid.
what is the [H3O+] and the pH of a benzoic acid-benzoic buffer that consists of 0.15 M C6H5COOH and .47 M C6H5COONa? (Ka of benzoic acid = 6.3 * 10^-5)
A solution is prepared by dissolving 15.0 g of NH3 in 250 g of water. the density of the resulting solution is 0.974 g/mL. The molarity of NH3 in the solution is
3.2 x 10-3 moles of O2 gas effuse from a container in 10.0 minutes. How many moles of CH4 gas could effuse from the same container in 10.0 minutes under the same conditions
Substances A and B are the same mass and at the same initial temperature. When they are heated, the final temperature of A is 55degree C higher than the temperature of B. What does this tell you about the specific heats of A and B
A gas occupies 4.04 L at 860 torr and 10C. What volume will it fill if the pressure is changed to 731 torr and the temperature is raised to 43C
Which of the following solvents would be good to use for 1H NMR analyses? (Check all that apply) acetone-d6 chloroform-d dimethyl sulfoxide deuterium oxide acetone
the iodine be located on the same carbon with opposite placement
Consider the titration of a 26.0 mL sample of 0.175 M Ch3NH2 with 0.150M HBr . Determine each of the following. 1) the initial pH? 2) the volume of added acid required to reach the equivalence point
Write balanced complete ionic equation for the following equation: Express your answer as a chemical equation.
Calculate the solubility (in grams per 1.00*10^2mL of solution) of magnesium hydroxide in a solution buffered at pH = 12.S1= 1.2*10^-8 g/(1.00*10^2mL)
Why does Ph3CO-MgBr+ dissolve when HCl is added? Write a chemical equation to describe what happens.
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