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1. Butadiene (C4H6) reacts with itself to form a dimer with the formula C8H12. The reaction is second order in C4H6. If the rate constant at a particular temperature is 4.0×10-2M-1s-1 and the initial concentration of C4H6 is 1.80×10-2M. The molarity after 1.00hr is 5.0 x 10-3 M.
What is the time (in hours) when the C4H6 concentration reaches a value of 1.80×10-3 M?
Express answer using two significant figures.
for a particular reaction deltahdeg is 20.1 kj and deltas is 45.9 jk. assuming these values change very little with
contains air at a pressure of 171 kPa and a temperature of 293 K. How many moles of air are in it? Also, how many molecules of air does it contain?
How many millliters of 0.750 M H3PO4 are required to react with 250. mL of 0.150 M Ba(OH)2 if the products are barium phosphate and water
Calculate the concentrations of the protoneated and unprotonated forms of bromothymol blue in 100 mL of a pH 8.1 buffer solution to which 1.0 mL of 0.005 M solution of bromothymol blue in 80% wate/20%ethanol has been added.
Addition of 51.5 mL of 2.238 m of H2SO4 (solution density=1.1243 g/mL) to 51.5 mL of 2.238 M BaCl2 gives a white precipitate. What is the mass of the precipitate in grams
The answer gives you a fraction of the amount of organic compound extracted into solvent B, ether. How much material (in mg) is left in the water layer? Discuss which extraction method is preferable; one or two extractions?
A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4 will be needed to produce 300mL of a solution
The volume of an ideal gas in a container is 2.0L. What will the volume of the gas be if the pressure on the container is doubled while the temperature is reduced from 400k to 200k?
Experiment Initial Initial Initial [A], Mol/L [B], Mol/L Rate 1 0.10 0.10 1.4 x 10^2 2 0.20 0.10 2.8 x 10^2 3 0.20 0.10 5.6 x 10^2 What is the rate law for the reaction. A) rate= k [A][B] B) rate= k [A]^2[B]^2 C) rate= k [A] D) rate= k [A][B]^2 E)..
a. glucose is present in bacterial cells at a concentration ofabout 1 mm. what is the concentration of glucose
How many grams of solid barium sulfate form when 18.6 mL of 0.160 M barium chloride reacts with 65.1 mL of 0.055 M sodium sulfate? Aqueous sodium chloride is the other product.
Utilizing data from the reverse side of the Periodic Table, Compute the standard free energy change (G rxn) at 25oC for the reaction below. Utilize F = 96,500 C/mol for Faraday's constant.
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