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Arsenic (III) sulfide sublimes readily, even below its melting point of 320 C. The molecules of the vapor phase are found to effuse through a tiny hole at 0.28 times the rate of effusion of Ar atoms under the same conditions of temperature and pressure. What is the molecular formula of Ar(III) sulfide in the gas phase?
a) if you make up a solution of 50mL of 0.1M TRIS in the acid form, what will be the pH. b) If you add 2mL of 1M NaOH to the solution, what will be the pH
Calculate the value of each partition function. c) Use the TST to calculate the rate constant for the reaction D + H2à DH + H
Calculate the enthalpy (?Ho) of reaction (kJ) for the equation as written. If the answer is negative, enter the sign and then the magnitude.
If a 100.00 g sucrose solution has a boiling point of 101.5oC, how many moles of sucrose are in the solution. How many grams
What mass of Al2O3, in grams, can be made by reacting 4.6 g Al with excess oxygen?
compute the volume of sodium hydroxide that is required to make a buffer with a pH = 5.77.? given that pKa = 4.77. and initial volume of the acid solution = 1.00 Litre.
Saturated sodium chloride. describe what happens when 12 M HCl is added to saturated (5.4 M) NaCl. Calculate [Cl-] in the original solution and after the addition of the 12 M Hcl (before any precipitate forms).
What is the probability that it will take more than 40 minutes to complete the test?
Industrially, fats are often extracted with hexane. (How will you) compare the "greeness" of the extraction of triglyceride from nutmeg with a solvent mixture of 4.5 Ethanol: 4.5 Ethyl Acetate: 1 water ratio mixture with the industrial method
how might the addition of water helped convert this by product into the desired product?
A study of this system reveals that there are 4.0E-3 moles of sulfur dioxide gas, and 4.9E-3 moles of oxygen gas present in a 9.0L flask at equilibrium. The equilibrium constant for this reaction is 4.1E-3. Calculate the number of moles of SO3(g) ..
Does pH have an effect on the cell potential (Ecell) for the following oxidation-reduction reaction? 5Fe^2+(aq) + MnO4^-(aq) + 8H^+(aq) ---> 5Fe^3+(aq) + Mn^2+(aq) + 4H20(l)
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