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The two isotopes of uranium, U-235 and U-238 can be separated by effusion of the corresponding UF6 gasses. What is the ratio of the root mean square speed 238-UF6 to that of 235-UF6?
Ammonia (NH3) is widely used as a fertilizer and in many household cleaners. How much ammonia is produced when 6.32 mol of hydrogen gas react with an excess of nitrogen gas?Answer in units of mol
consider the gaseous reaction at 347 celsius N2+3H2-->2NH3 if 2.00 mole of N2 and 3.00 mole of H2 react, which of the two reactants is the limiting reagent.
Express the concentration of a 0.0460 M aqueous solution of fluoride, F-, in mass percentage and in parts per million. Assume the density of the solution is 1.00g/mL.
A mammoth skeleton has a carbon-14 decay rate of 0.46 disintegratioins per minute per gram of carbon (0.46 dis/min*g C)
How do I find pressure exerted in the closed end of an apparatus if the atmospheric pressure is 720.0 torr and the height of the water column is 22.3 cm
Describe the procedure for doing isopentyl acetate. provide the calculation and all the reagents that can be used in this reaction
The combustion of octane produces carbon dioxide and water. If you start with 10.0 mol of octane, what mass of water (in grams) would you expect to produce?
A subsequent titration revealed that the concentration of the unknown acid was 0.868 M. What was the concentration of the diluted acid om the Erlenmeyer flask?
predict a shape of small organic molecules that could bind tightly with G4. Be sure to explain your reasoning in terms of the measured distances and discuss the likely intermolecular forces involved in the interaction.
A lactic acid/lactate ion buffer solution contains 0.43M HC3H5O3 and 0.62M C3H5O3^-, respectively. The value of lactic acid is 1.4*10^-4. Calculate the pH of this buffer.
If I put a methanol solution of m-THPC into a 10.0 mm pathlength cuvet, and observe an absorbance of 0.132 (no units) at 652 nm, what is the concentration of the solution? (Assume there are no other solutes present in the methanlo.
For the reaction 2A + B --> 2C, if B is initially 4.0M and 2min later is 3.0M, what is the rate of appearance of C?
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