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Phosphorus pentachloride decomposes according to the chemical equation PCl5(g)<---->PCL3(g)+Cl2(g) kc=1.80 at 250 Celsius A 0.291 mol sample of PCl5(g) is injected into an empty 4.35 L reaction vessel held at 250 °C. Calculate the concentrations of PCl5(g) and PCl3(g) at equilibrium.
Show that the enthalpy of combustion of saturated hydrocarbons may be expectred to follow the relation
At 25C the acid dissociation constant for formic acid is 6.9x10-4. Calculate DG for this reaction. R=8.31x10-3 kj/K) Can you please help me work this problem.
Consider the reaction with the rate law, Rate = k[BrO3-][Br-][H+]2 By what factor does the rate change if the concentration of BrO3- is tripled and that of Br- is tripled
Hydrogen atoms are excited by a laser to the n=4 state and then allowed to emit. What is the maximum number of distinct emission spectral lines that can be observed from this system? Calculate the wavelength of the 4 to 1 transition in m.
Report each to three significant figures in scientific notation. Given this data for the decomposition of urea in an acidic solution, calculate each of the following assuming Arrhenius behavior.
consider the ring structure of beta-D-glucose. it will give a positive test as a reducing sugar. How can that happen
consider the results of an experiment in which nitrogen dioxide reacts with ozone at 2 different temperatures, 13 degrees Celsius and 29 degrees Celsius. If the activation energy is 29 kI/mol, but what factor does the rate constant increase with t..
suppose that a student performing an experiment mistakenly calibrated the pH meter using pH 6 instead of a pH 7 buffer. As a result all pH meter readings were too low.
Strontium-90 is one of the products of the fission of uranium-235. This strontium isotope is radioactive, with a half-life of 28.1 yr.
The Nernst equation is used to predict the impact of concentration on the cell potential. What value of slope does the Nernst equation predict for a plot of Ecell vs log(Cu2+ Conc. Ratio)
Given the following two solutions: 0.200 M HC2H3O2(aq) with pKa = 4.76 0.200M NaOH(aq) A mixture is made using 50.0 mL of the HC2H3O2 and 25.0 mL of the NaOH. What is its pH?
When M2S3(s) is heated in air, it is converted to MO2(s). A 3.700-g sample of M2S3(s) shows a decrease in mass of 0.207 g when it is heated in air.
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