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In a qualitative analysis procedure, a chemist adds 0.2 M HCl to anunknown group of ions and then saturates the solution withH2S. (H2S = 0.10 M.)
(a) What is the [HS-] of the solution?
(b) If 0.01 M of each of the following ions is in the solution,which will form a precipitate? (Select all that apply.)
Cu2+Pb2+Hg2+Fe2+Mn2+K+Ag+Ni2+
In a synthesis experiment you obtain a sample of product on which you do a melting point determination and find a melting point range of 108.0 to 114.3 degrees Celsius.
Draw the product obtained when cis-3-octene is treated first with Br2 in CH2Cl2, second with NaNH2 in NH3, and then finally with H2/Lindlar's catalyst.
A gas undergoes a process that leads to a change in internal energy of 4.5 J, while simultaneously work in the amount of 17.6 J is performed by the gas at constant pressure. Calculate the change in enthalpy of this process.
What are the concentrations of H2SO4 and H2SO3 in a 25ml solution titrated with .1M NaOH. The first endpoint is reached after 37.89ml of NaOH are added (pH=7) and the second endpoint is reached after 43.57ml of NaOH are added (pH=9.8).
A certain compound is made up of three chlorine atoms, one phosphorus atom, and one oxygen atom.
Propose the structure of a conjugated diene (no more six carbons) for which 1,2-addition of HBr produces
a gas mixture contains 4.6 g ofN2, 8.8g of H2 and 16.6g of CH4. What is the mole fraction of H2 in the mixture
What is the ay4- when edta is at ph of 10.5. is there a special trick when the ph is higher the pka6 equilibrium
the ha monoprotic acid is dissolved in h2o calculate ka and pka for the acid ha if the equilibrium concentrations of
The action of bacteria on meat and fish produces a poisonous compound called cadaverine. As its name and origin imply, it stinks!
The rate of phosphorus pentachloride decomposition is measured at a PCI5 pressure of 0.015 atm and then again at a PCl5 pressure of 0.30 atm. The temperature is identical in both measurements. Which rate is likely to be faster
The Born-Haber cycle is a series of steps that represent the formation of an ionic compound from a metal and a nonmetal. For example, the steps in a Born-Haber cycle for the formation of NaCl(s) consist of sublimation of the metal Na atom
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