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In a particular solution, [Cr3+]=3.9x10-4 mol/L. What is the minimum pH at which Cr(OH)3(s) will precipitate from this solution? Assume the temperature is 25oC. For Cr(OH)3(s), Ksp=6.3x10-31 at 25oC. Give your answer with three digits
Draw the structure of the product that is formed when methylbenzene is treated with the following reagents:1) NBS, heat; 2) Mg; 3) Ethylene oxide
What is the [H30+] in the final solution after mixing 0.500 L solution of 0.100M HbrO4(aq) with 0.600L of 0.010M solution of NaOH
A mixture of heptane/decane at 1.8 bar, 120?C contains 80% by mol heptane. At what pressure should it be flashed to obtain a stream that is 90% rich in heptane? What are the composition of the liquid and the amounts of the two phases?
Lightning from thunderstorms strike the Earth 100 times each second. 2400 deaths have been caused by lightning strikes over the past 25 years. How many strikes occur before a death occurs
What is the single-particle collisional frequency (for diatomic Nitrogen)at sea level, with 341 and 1.0 atm. The corresponding single-particle collisional frequency is reported as 10^10 s^-1.
a sample of gas occupoes 17ml at -112 degrees C. what volume does the sample occupy at 70 degrees C.
discrete inquires at a company situated on the lake and employee confesses to you that they have been dumping 89 g/min for years but that the dumping has now stopped. If lake has a residence time of 100 days, the flowrate into the lake is 10 m3/s,..
Find the pH during the titration of 20.00 mL of 0.1760 M butanoic acid, CH3CH2CH2COOH (Ka = 1.54 10-5), with 0.1760 M NaOH solution after the following additions of titrant.
The concentration of sulfuric acid in the lead-storage battery of an automobile over a period of time has decreased from 38.0 percent by mass (density = 1.29 g/mL) to 26.0 percent by mass (1.19 g/mL). Assume the volume of the acid remains constant..
Draw (S)-3-hexanol, then indicate the stereochemistry of the product formed when it is treated with each of the following reagents
An unknown gas Q effuses 1.26 times as fast under the same conditions as Xe gas. What is the molar mass (g/mol) of Q?
If a cylinder of NO has a volume of 20.00L and a pressure of 26.98 atm at 20 degrees Celcius, what is the mole fraction of NO knowing that there are 21.55moles of Nitrogen?
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