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Using the quantities 3 grams of salicylic acid and 6ml of acetic anhydride noted in the macro scale procedure and any other necessary data, calculate the theoretical yield in moles and grams of aspirin.
Weight and volume measurements on a sample of pure cadmium showed its density to be 521 lb/ft3 is this a 3.5% error?
Why is molarity not the best means of stating acid strength? Is molarity the most representative form of quantifying acids and bases?
A mixture intially contains A, B,C in the following concentrations: A= .700 B= .850 C=.400. the following reaction occurs and an equilibrium is established.
Construct a simulated 1H NMR spectrum for 1,1-dichloroethane by dragging and dropping the appropriate splitting patterns into the boxes on the chemical shift baseline
solution of the monoprotic acid HBr is titrated, and 85.00 mL of 0.59M NaOH is required to reach the equivalence point. What is the original concentration of the acid solution?
Element 107 was made by bombarding Bismuth-209 with Chromium-54. One product is a neutron, what is the balanced equation?
Calculate the percent manganese in the sample as Mn3O4 (only part or none of the manganese may exist in this form, but we can make the calculations on the assumption that it does)
A 25.0-mL sample of 1.00 M NH3 is titrated with 0.15 M HCl. What is the pH of the solution after 15.00 mL of acid have been added to the ammonia solution? Kb = 1.8 × 10¯5
Determine the oder of the reaction in H2O2 and KI. Explain how you arrived at your answer. Calculate the rate constant, k, and write the rate law expression for the catalyzed decomposition of hydrogen peroxide.
A solution is prepared by dissolving 11.5 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 10.00 mL sample of this stock solution is added to 52.00 mL of water. Calculate the concentration of ammonium ions and sulfate ions ..
Make a FLOW CHART on how a mixture of phenol, benzoic acid, p-nitroaniline and anthracene can be seperated by EXTRACTION.
A mixture of amino acids is subjected to paper electrophoresis at pH 6.0. The amino acids present in the mixture are Val, Glu, Phe, Ser, and Lys. Which amino acids will migrate toward the cathode? Toward the anode? Explain.
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