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How many grams of phosphorus react with 31.2 L of O2 at STP to form tetraphosphorus decaoxide?
Draw the structure of the product that is formed when but-1-yne is treated with the following reagents:1) disiamylborane; 2) H2O2, KOH; 3) LiAlH4. Disiamylborane = [(i-Pr)(CH3)CH]2BH, a hindered derivative of BH3.
Calculate the de Broglie wavelength of a Helium atom moving at a speed of 244.0 m/s.
the kinetic energy of a rolling billiard ball is given by ke 12mv2 . suppose a 0.17 kg billiard ball is rolling down a
MgO has the same crystal structure as NaCl, face-centered cubic. How many oxide ions surround each Mg^2+ ion as nearest neighbors
Draw a flow chart showing the procedure and the observations to be expected at each step with each of the possible cations.
In calibrating a drop counter, a student had an initial buret reading of 0.41 mL and a final buret reading of 4.71 mL after dispensing 75 drops from a buret.
At a particular temperature the equilibrium constant for the reaction: H2(g) + F2(g) ? 2HF(g) is K = 36.0. A reaction mixture in a 10.00-L flask contains 0.42 moles each of hydrogen and fluorine gases plus 0.15 moles of HF.
Write the balanced molecular equation for the combustion of methanethiol in an excess supply of oxygen.
A 613-mL sample of unknown HCl solution reacts completely with Na2CO3 to form 11.1g CO2 . What was the concentration of the HCl solution
What are the n and l quantum numbers of the electron removed when Bi is ionized to Bi+ and would you expect element 115 to have ionization energy greater than, equal to, or less than that of bismuth? Explain.
A new global sustainable business and industry incubator network is expanding into a Paris suburb. They want to make the newly acquired building and operations more environmentally friendly.
A radioactive element has a half-life of 2.2 hours. How many hours will it take for the number of atoms present to decay to one-sixteenth of the initial value? Show your calculations please.
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