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Zinc ion reacts with excess CN? To form a colorless complex ion, Zn(CN)42, which has a formation constant Kf = 4.2x10^19. Compute the concentration of Zn2+ in a solution prepared by mixing equal volumes of 5.0x103 M Zn(NO3)2 and 0.10 M NaCN. Ignore the hydrolysis of CN(aq).
Explain why is the lattice energy of potassium bromide more exothermic than the lattice energy of rubidium iodide
EDTA is utilized to slow microbial degradation of mayonnaise by preventing bacterial uptake of iron. Assuming that mayonnaise has a pH of 3.9 and a total iron content of 10-6 mole/liter, how much EDTA must be added to complex 99%
Atomic absorption spectrometry was used with the method of standard additions to determine the concentration of cadmium in a sample of an industrial waste stream
question an aqueous dextrose solution having a density of 1.04 gcm3 freezes at -1.15degc. find the osmotic pressure of
what is the molarity of a saturated solution of AgOH with a Ksp = 2.0 x 10^ -8
What is the solubility (in M units) of ammonia gas in water at 298 K and a partial pressure of 7.40 atm. The Henry's law constant for ammonia gas at 298 K is 58.0 M/atm.
Utilize this information to define why infrared detectors using semiconductors are usually cooled to low temperatures example 77 K using liquid nitrogen to reduce dark current that is electrical signal in the absence of an IR source.
If a solution has a pH of 2.36 and you do a 20-fold dilution of it with ultrapure reagent-grade water, what will its pH be after you dilute it
crystallizes with the body-centered cubic unit cell. Calculate the radius of a sodium atom. and what is the edge length of the cell in picometers?
Calculate the mass of oxygen (in mg) dissolved in a 5.00 L bucket of water exposed to a pressure of 1.13 atm of air. Assume the mole fraction of oxygen in air to be 0.21
research recently reported the first optical atomic trap. in this device beams of laser light replace the physical
A piston has an external pressure of 8.00 atm. How much work has been done if the cylinder goes from a volume of 0.170 liters to 0.530 liters.
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