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A solution is made so that [Zn+2]=.0025 and [Ag+1]=.057. If [F-1 ] is added, answer the following questions. know that Ksp ZnF=4.8*10^-7 and Ksp AgF=7.6*10^-8.
Which will ppt first? At what [f-1] will it begin to ppt?
You wash dishes for a chemistry laboratory to make extra money for laundry. You earn 6 , and each shift lasts 75 . Your laundry requires 6 . How many shifts must you work if you wish to wash 10 of laundry
The product in the 3rd step of this multi-step synthesis, p-aminobenzoic acid (PABA), was a common ingredient in sunscreen lotions. PABA is such an effective sunscreen due to the many resonance structures that can be drawn for this molecule.
A particular first order reaction has a rate constant of 1.35 times 10^2 s^-1 at 25 degrees C. What is the magnitude of k at 95.0 degrees C if Ea=55.5kj/mol
Give some laboratory situations or chemistry problems where you could use this information.
If 3.743g sample of MgSO4.7H2O were heated strongly, what would be the expected mass of cooled dehydrated salt
Calculate the rate at each time interval & average rate for the reaction and determine the rate of each time interval, and then calculate the average rate for the reaction in terms of [H 2 O].
What is the freezing point of a solution made by mixing 1.40 mol sodium sulfate, Na2(SO4), 1750 g H2O? (Kfp=1.86 C/m)
calculate the osmotic pressure of a magnesium citrate laxative solution containing 30.0 g of magnesium citrate in 251
Briefly describe the adverse effects caused by exposure to radiation. Include some specific exposure levels associated with these significant health effects.
Ether usually known as Ethoxyethane, is often used to extract organic compounds from aqueous solution. Which of its properties A does notfavour its selection for this use?
Problem- A 0.831-g sample of SO3 is placed in a 1.00 L container and heated to 1100 K. The SO3 decomposes to SO2 and O2: 2SO3 (g) 2SO2 (g) + O2 (g). At equilibrium the total pressure in the container is 1.300 atm.
Recall "living" carbon samples show 15.3 d/min*g (carbon). note: CaCO3 is 12.00% carbon, and 14C has a half-life of 5730yr.
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