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What product would you expect from reaction of cis-2-butene with meta-chloro-peroxybenzoic acid? Show the stereochemistry.
For a particular isomer of C8H18, the following reaction produces 5113.3 kJ of heat per mole of C8H18(g) consumed, under standard conditions.
The change in the Gibbs energy of a certain constant-pressure process was found to fit the expression ΔG/J = -85.40 + 36.5(T/K). Calculate the value of ΔS for the process.
Hydrazine, N2H4 has pkb1=6.07 and pkb2=15.05. Draw a structural formula for hydrazine and write the two equations corresponding to the two pKb. Determine the pH of 0.245M N2H4(aq).
How much heat in kilojoules is evolved or absorbed in each of the following reactions?
A tank contains both nitrogen and hydrogen gas. If the partial pressures are 190 mm Hg and 303 mm Hg respectively, what is the mole fraction of nitrogen?
A reaction mixture initially contains 0.50 M CH4 and 0.75 M H2S. If the equilibrium concentration of H2 is 0.44 M, find the equilibrium constant (Kc) for the reaction.
Determine the ---> H°rxn for the reaction as written below. Assume that the density and heat capacity of the solutions is the same as that of water.
Using what you know about how melting point helps determine whether a sample is pure, describe an experiment which will identify the unknown solute. You should explain how specific observations from
You have 75.0 mL of a 2.50 M solution of Na2CrO4(aq). You also have 125 mL of a 2.50 M solution of AgNO3(aq). Calculate the concentrations of the following ions when the two solutions are added togeth
Three hundred gallons of a mixture containing 75.0 wt% ethanol and 25% water (mixture specific gravity = 0.877) and a quantity of a 40.0 wt% ethanol-60% water mixture (SG=0.952) are blended to prod
Chlorination of ethane yields in addition to ethyl chloride, a mixture of two isomeric dichlorides. What are the structures of these two dichlorides?
Compare the structure of the thiosulphate ion vs. sulphite ion. How would you determine the degree of purity of the sample?
What is the proton concentration in 25mL of a 0.50M solution of LiOH at 25degrees-C?
Calculate the distribution coefficient of caffeine between chloroform and water at room temperature.
Suppose that all 175L of liquid nitrogen in the tank accidentally vaporized in a lab that measured 10.00mx10.00mx2.50m. What maximum fraction of the air in the room could be displaced by the gaseous
What makes this an oxidation-reduction reaction? Write the half-reactions showing the oxidation and reduction reactions. Identify which is the oxidation reaction and which is the reduction reaction.
Suppose that 10.0 mol C2H6(g) is confined to 4.860 dm3 at 27°C. Predict the pressure exerted by the ethane from (a) the perfect gas and (b) the van der Waals equations of state. Calculate t
A Carnot cycle uses 1.00 mol of a monatomic perfect gas as the working substance from an initial state of 10.0 atm and 600 K. It expands isothermally to a pressure of 1.00 atm (Step 1), and then adi
It is found that the boiling point of a binary solution of A and B with xA = 0.6589 is 88°C. At this temperature the vapour pressures of pure A and B are 127.6 kPa and 50.60 kPa, respectively. (
(a) Write the propagation steps leading to the formation of dichloromethane (CH2Cl2) from chloromethane.
A certain nitrogen-oxygen compound contains 36.84% N by mass and the remainder is oxygen. What is the empirical formula of the compound?
Phosgene, C12C = O, has a smaller dipole moment then formaldehyde, H2C = O, even though it contains electronegative chlorine atoms in place of hydrogen. Explain
Formaldehyde, H2C = O, is known to all biologists because of its usefulness as a tissue preservative. When pure, formaldehyde trimerizes to give trioxane, C3H6O3, which, surprisingly enough, has no
Elemental sulfur occurs as octatomic molecules, S8. What mass of fluorine gas, F2, is needed for complete reaction with 38.5 g sulfur to form sulfur hexafluoride?