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Suppose that a student performed the experiment and the calculations perfectly except for the following. Unknown the student, Cu (NO3)2•3H2O instead of CuSO4•5H2O was used to make up the known Cu 2 solution. Using his data the student found a percentage of copper in the brass samples of 50.0 %. Would this percentage be correct? If so, why? If not, what is the correct percentage?
Acetylenic fatty acids are found in many tropical plants. Compound C, C18H30O2, is one such compound; it absorbs 3 equivalents of H2 when treated with H2 over a Pd/C catalyst. Ozonolysis of compound C produces the following products:
Alkynes can be hydrated in the presence of acid and HgSO4, by electrophilic addition of a molecule of water to the triple bond.
In the titration, 20.46 mL of the sodium hydroxide was used to react with 0.1082 grams of KHP. What is the molarity of the NaOH?
If a few drops of water on the outside of the hot water syringe used to dispense the 5.00 mL sample into the calorimeter well for the Kcal determination fell into the well
what the molarity of H2SO4 if 15.85 mL of the solution is needed to neutralize 1.00g NaHCO3 molar mass 84.01 g/mol
What would be the resulting molarity of a solution made by dissolving 21.9 grams of KCl in enough water to make an 869-milliliter solution?
How much heat is required to warm 1.20 kg of sand from 26.0 0C to 100.0 0C?
Identify the limiting reagent for the given combination of reactants. Calculate how many grams of whatever substance will be in excess and how many grams of HF will be made.
Chromium, Manganese, and Barium are all examples of metals that can be prepared in a pure form by combining oxides of these elements with reactive metals
Balance the following equation in acidic solution using the lowest possible integers and give the coefficient of water.
Perchloric acid with an aqueos solution of ammonia and nitrous acid with lithium hydroxide
the reaction is spontaneous below a certain temperature. Calculate that temperature. values are for delta H and delta S respectively.
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