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A solution containing sulfide ions is added to selectively precipitate one of the metal ions from solution. At what concentration of sulfide ion will a precipitate begin to form? What is the identity of the precipitate? Ksp(CuS)= 1.4 x 10^-36, Ksp(FeS)= 6.3 x 10^-18. Explain the rationale for your answer.0^-36, Ksp(FeS)= 6.3 x 10^-18. Explain the rationale for your answer.
Propose a mechanism for the synthesis of 3-nitrophthalhydrazide from 3-nitrophthalic acid
PET studies require fluorine-18, which is produced in a cyclotron and decays with a half-life of 1.83 hours. Assuming that the F-18 can be transported at 60.0 miles/hour, how close must the hospital be to the cyclotron if 65% of the F-18 produced ..
Calculate the change in internal energy for a system if a gas cools and releases 10.86 kJ of heat and expanded from 2.35 L to 22.86 L at 3.50 atm
In which of the processes described below should the entropy increase. Choose ALL of the correct possibilities. A) ice cubes melting at -5 oC and 1 atm pressure
An analytical procedure requires a solution of chloride ions. how many grams of caCl2 must be dissolved to make 2.15 L of 0.0520 M Cl-.
Print the chemical equation for the activity of aluminum metal and silver(I) ion from the amalgam. Which reactant is the reducing agent
On what basis can we justify the assumption that the entropies of deprotonation of the ground and excited state 2-naphthol molecules are equal.
a metal container holding xenon gas xe has a pressure of 458 torr at 20 degrees celcius. at what temperature will the
What is the minimum number of 1.0 L bottles of concentrate needed to make the wine have the correct level of sugar. Remember to show all work, units and assumptions.
The best means of personal protection from radiation for emergency responders is the implementation of three basic principles: time, distance and shielding. Please show your work when answering the following questions.
It is important to know if a particular molecule is composed of elements with different electronegativities as well as the structure of the particular molecule to explain the physical properties of the molecule.
Write a balanced half-reaction for the reduction of hydrogen peroxide to water in an acidic solution. a. 2H2O2(l) + 2e- --> 2 H2O (l) + O2(g)
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