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What should the solubility of a compound be in a solvent it is to be recrystalized from? (Hint you will want to look at solubility vs. temperature)?
We had to do an experiment that depolymerized PET into terephthalic acid and ethylene glycol using 1-pentanol and KOH. One of the post-lab questions is as follows:
If 10500 L H2 gas is reacted with an excess of N2 gas at 200 atm. and 500 C, how many moles of ammonia gas would be produced, assuming a 15% yield?
A corrosionist pipetted a 50.00 ml sample of an unknown brine and titrated it with 37.64 ml of 0.1024 M silver nitrate solution. Calculate the ppm of salt (NaCl)in the sample.
A cube of metal which looks like gold (Au, 19.32 g/cm3) is suspected by a modern Archimedes of being either iron (Fe, 7.90 g/cm3) coated with gold or aluminum
Based upon 3 SnF2 (ag) + 2 K3PO4 (aq)> Sn3(PO4)s (s) + 6 KF (aq), a 10.000 gram sample of toothpaste containing stannous fluoride gives a 0.145 gram precipitate of stannous phosphate. What is the percentage of SnF2 in the toothpaste sample?
What mass of NaOH is needed to precipitate the Cd^{2+} ions from 32.0 mL of 0.480 M Cd(NO3)2 solution?
When Sulfuric acid is a component of polluted air, it chemically attacks statues, memorials, and monuments made from limestone. Given that the most common mineral in limestone is calcium crabonate
Write the overall equation for the reaction. B) Do you expect this reaction to go by an E1 or an E2 mechanism?
a toxicologist studying mustard gas, S(CH2CH2Cl)2, prepares a mixture of 0.675 M SCl2 and 0.973 M C2H4 and allows it to react at room temperature (20.0 c) at equilibrium S(CH2CH2Cl)2 = .350 M. calculate Kp
Use the observations and arrange the following five reduction half-cell reactions in order, the one with the largest positive reduction potential listed first.
If the methane contained in 4.00 of a saturated solution at 25 was extracted and placed under STP conditions, what volume would it occupy?
Explain why dimerization of the cyclopentadiene is the side reaction and discuss how to avoid this side reaction.
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