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Methanol (CH3OH) is produced commercially by the catalyzed reaction of carbon monoxide and hydrogen: CO(g) + 2H2 (g) <-->(equilibrium) CH3OH(g). An equilibrium mixture in a 2.50 , L vessel is found to contain 2.75×10-2 mol CH3OH, 0.180 mol CO, and 0.302 mol H2 at 500 K.
What are the values of Delta H degree and Delta S degree for dissolution of PbI2? PbI( s) rightarrow Pb^(2 +) ( aq) + 2 I^( -) (aq) You may assume that Delta H and Delta S are independent of temperature
Americium-241 is used in smoke detectors. It has a rate constant for radioactive decay of k = 1.6x10-3yr-1. What is the half-life of this isotope in years? Give your answer to 3 significant figures.
A mercury manometer is connected on one side to a bulb containing argon, while the other end is open to atmospheric pressure, which is 762 mmHg.
A water chemist obtained a 250-mL sample from a nearby lake and fixed the oxygen on-site wth alkaline solutions of MnS04 and Kl-NaN3-. returning to the labrotary, a 200-mL sample was analyzed by acidifying the sample
what is the simplest formula for chalcocite if a sample of this ore contains 8.274 g copper and 2.088 g
Determine the partial pressure and total pressure of each gas in the vessel and process of reaction runs until eighty five of the Oxygen is used and the vessel get cooled to its starting or initial temperature.
0.33g of koh is dissolved in 350.0ml of ethanol and 1.45g of c2h5i is dissolved in 350.0ml of ethanol. assuming the
At a certain temperature, the equilibrium constant, Kc, for this reaction is 53.3. H2(g)+I2(g) 2HI(g) Kc=53.3 At this temperature, 0.800 mol of H2 and 0.800 mol of I2 were placed in a 1.00-L container to react. What concentration of HI is present ..
Pesticide concentrations in the Rhine River between Germany and Grancn between 1969 and 1975 averaged 0.55 mg/L of C6Cl6, 0.06 mg/L of C12H8Cl60 and 1.02 mg/L of C6H6Cl6.
When the magnesium is not allowed sufficient oxygen, some magnesium nitride, Mg3N2, forms. How does one decompose any magnesium nitride
A tunable dye laser emits pulses of light at 609.0 nm, each having a total energy of 9.8E-6 J. Calculate the number of photons in each pulse.
I dissolved .5 grams of mustard in 3 mL of distilled water. I was asked to determine the mass percentage of acetic acid in mustard, so I added 2.5 mL of NaOH to turn the mustard solution red.
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