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A. Calculate the solubility (milligrams per liter) of Zn2Fe(CN)6, which dissociates as follows with Ksp = 2.1E10-16.
Zn2Fe(CN)6(s) --> 2 Zn2+ + Fe(CN)64- (Ferrocyanide)
B. Calculate the molar concentration of ferrocyanide in a solution of 0.031 M ZnSO4 saturated with Zn2Fe(CN)6. ZnSO4 will be completely dissociated into Zn2+ and SO42-
C. What molar concentration of K4Fe(CN)6 should be added to a suspension of solid Zn2Fe(CN)6 in water to give [Zn2+] = 6.9 10-7 M?
Calculate (a) the work done when the gas expands isothermally against a constant external pressure of 200 Torr until its volume has increased by 3.6 dm3, and (b) the work that would be done if the same expansion had occurred reversibly.
A 15.0 L flask contains 2.00 moles of N2 and 6.00 moles of H2 at 728 oC. A. Before any reaction takes place, what is the partial pressure of N2 in the flask?
Are there any other particular ones more important or can some of them actually have a harmful effect on the human body.
Explain why the extrapolated temperature is used to determine the maximum temperature of the mixture rather than the highest record temperature in the experiment.
what radial position is the velocity of an individual fluid element equal to the average velocity of the fluid? (r= r subscript c and 0
CO(g) + 2H2(g) = CH3OH(g) , what is the equilibrium constant? , where CH3OH = 0.0412 atm, H2 = 0.274 atm, CO = 0.914 atm.
Zinc metal can be obtained from zinc oxide (ZnO) by reacting the oxide with the element carbon. The products of the reaction are Zn and CO2.
Draw a separation scheme for isopentyl acetate from its reactants (isopentyl alcohol, glacial acetic acid, and concentrated sulfuric acid)
Consider the zinc atoms of ZnSe. With what pairs of atoms could the Zn be replaced to make another isoelectronic solid
What is the density of a block of marble that occupies 350 cm3 and has a mass of 660 g?Answer in units of g/cm
To a second 25.00 mL part, 10.00 mg of lead was added and extracted into a second 10.00 mL portion of the same organic solvent. This solution gave A = 0.525. What was the concentration of lead, in mg/mL, in the original sample?
How many kJ of heat are needed to raise the temperature of 2kg of water from 29 degrees C
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