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What is the percent yeild of alum if 0.4000g of aluminum is used in the synthesis of alum and 4.8946 grams if alum is actually collected at the end of the experiment.
Upon further analysis, the compound is found to be 25.305% C and 74.695% Cl. What is the molecular formula of the compound?
the MWP for a tank is 207.0 bar at 20 degrees C. If the tank is filled at 200.0 bar at 20 degrees C, what is the maximum pressure the tank achieves if left in the sun on a boat, if the tank temperature reaches 35.0 degrees C?
calculate the ph of a buffer made with 0.50m phosphoric acid and 0.75m sodium dihydrogenphosphate. ka 7.5 x
A current of 3.87 A is passed through a Cr(NO3)2 solution for 1.10 hours. How much chromium is plated out of the solution? in (g)
For CH2CBr2, which geometric isomers do you suppose is energetically most stable; containing less repulsion energy: cis or trans
Which of the following peptides has a pI close to 5.5? Assume that the pKa value of the alpha-amino group is 9.6 and the pKa for the alpha-carboxylate group is 2.3. A. Ser-His-Arg-Asn
a) The reaction will shift toward products with no change in K. b) The reaction will shift toward products with a decrease in K. c) The reaction will shift toward products with an increase in K. d) The reaction will not shift and the value of K wi..
A kitchen pressure cooker operates at 1.50 atm. The Hvap of water is 40.7 kJ/mol. What is the boiling point of water in the pressure cooker
PLEASE NOTE: The procedures described in this lab assume that you have already done the Titration Tutorial and are familiar with the technique. If you have not yet done the Titration Tutorial Lab, please do it now.
On the basis of what you have learned about the intermolecular forces, predict which liquid has the highest boiling point? Lowest surface tension?
what is the value of ni for an electron that emits a photon of wavelength 95.04 nm when it returns to grount state in a th H atom
A 0.221 g pellet of potassium hydroxide,KOH, is added to 52.2 g water in a Styrofoam coffee cup. The water temperature rises from 23.5 to 24.4 °C.
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