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Does fluorene or 9-fluorenone move faster down the column when petroleum ether is used as the eluant? Why?
Calculate the number of moles of aluminum, sulfur, and oxygen atoms in 8.00 moles of aluminum sulfate Al2(SO4)3 . Express the number of moles of Al, S, and O atoms numerically, separated by commas.
If 12.6 grams of iron (III) oxide reacts with 9.65 grams of carbon monoxide to produce 7.23 g of pure iron, what are the theoretical yield and percent yield of this reaction?
Write the complete ionic equation for each reaction that produced a precipitate? Write the net ionic equation for each reaction that produced a precipitate?
As a solid, Fe adopts a body-centered cubic unit cell. How many unit cells are present per cubic centimeter of Fe. What is the volume of a unit cell of this metal
write a brief essay describe the benefits of using fusion reactions for nuclear energy instead of fission. also discuss
A nurse administered 3.50mL of a radioisotope solution that has an activity of 135pCi/mL. What total dose of the radioisotope did the patient receive
A saturated solution of Mg(OH)2 is prepared and allowed to equilibriate at 25 degrees celcius. A 25.00 mL sample of the 25 degrees celcius solution is titrated with 0.00508M HCL solution. 1.38 mL of the HCL solution are required to fully react the..
Calculate the de Broglie wavelength for each of the following.
To determine the concentration of a 25.0 mL ammonia solution (Kb for NH3 is 1.8 x 10-5), 25.0 mL of 0.200 M HCl solution is used. Calculate the pH of the endpoint.
a 91 gram solution of silver nitrate contains 15 grams of agno3. what is the percent by mass of silver nitrate in this
a student prepared a stock solution by dissolving 10.0g of koh in water to make 150. ml of solution. she then took 15.0
Draw the Newman projection formulas for the conformations of 2- methylbutane that are obtained by looking down the C2-C3 bond. Rank then oorder of relative stability
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