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Lead poisoning in children used to be treated with intravenous injections of EDTA. If the concentration fo EDTA in the blood of a patient is 2.80 x 10^-8 M and the formation constant for the complex, [Pb(EDTA)]2-, is 2.00 x 10^18, what is the concentration ratio of the free (and potentially toxic) Pb2+ (aq) in the blood to the much less toxic Pb 2+ - EDTA complex?
How long would it take for 1.50 mol of water at 100. 0C to be converted completely into steam if heat were added at a constant rate of 16.0J/s ?
sodium hydroxide (NaOH) pellets are dissolved in water to make 8.0 L of solution. What is the pH of this solution?
The pH of a 0.40 M HF(aq) solution is 1.93. Calculate the change in pH when 0.356 g of sodium fluoride is added to 50.0 mL of the solution. Ignore any change in volume.
When 2, 2-diphenyl-1-ethanol is treated with aqueous HI the main product of the reaction is 1-iiodo-1, 1-diphenylethane. Propose a plausible mechanism that accounts for the formation of this product
A solution made by adding 105g of NaCl to 1 kg of water freezes at 20 degrees F (-6.7 degrees Celsius). Calculate the mass of CaCl2 that would lead to the same freezing point depression
What volume of .2 M Na2SO4 will completely react with 50 mL of .135 M Ba(NO3)2
A. A student places 2.10 L of water in his dormitory room, which has the volume of 4.06 x10^4 L. He seals the room and waits for the water to evaporate. At 25 deg C, the density of water is 0.997 g/mL
What is the reaction mechanism (detailed with arrows) for trans-cinnamaldehyde when reacted with benzyltriphenylphosphonium chloride?
From the reaction of 0.1000 g of solid granular tin with 0.1000 g of solid iodine in 3.0 mL of solvent methylcyclohexane (density = 0.770 g/mL) was isolated 0.0740 g of an iodide of tin as the sole product of the reaction.
but did not exactly add 4.0 mL. Instead he added 4.50mL. What was the final concentration of her standardized solution in ppm?
Sketch the phase diagram of a pure substnace from the follwoing data. (A log P scale may help). There are two solid forms X and Y, which are both denser than the liquid, and Y is denser than X.
The decomposition of hydrogen peroxid is second order in H2O2. If 50 grams of 30% hydrogen peroxide is placed in a beaker within a sealed environment, what will be the concentration of hydrogen peroxide
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