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A student weighs an aspirin tablet and finds that it weighs 385 mg. She crushes it, dissolves it, and titrates it with 0.0500 M NaOH solution. The volume required to reach the endpoint is 29.97 mL. How much ASA is in the tablet, and what is its % by weight of the tablet? (You can't use the EMM formula for this problem. Why not?)
Liquid sodium is being considered as an engine coolant. How many grams of liquid sodim (minimum) are needed to absorb 4.70 MJ of energy (in the form of heat) if the temperature of the sodiumis not to increase by more than 10.0 C
hydrogen sulfide is composed of two elements hydrogen and sulfur. in an experiment 6.100g of hydrogen sulfide is fully
How wil you determie the relative reactivites of aromatic compounds? Outline the procedure that you need to do in the laboratory to determine the relative reactivites of the following:
Once ready, he put a bit of sand on top. He loaded about 1 gram of product that had been dissolved in 1 ml of ethyl acetate.
What do we call a molecule that is made in one step in Reaction Mechanism and used up in another step of Reaction Mechanism
For the reaction given below at 700°C, Kc = 0.534. H2(g) + CO2(g) reverse reaction arrow H2O(g) + CO(g) Calculate the number of moles of H2 that are present at equilibrium
Calculate the molarity of the solution at the limit of detection if the molecular weight of THC is 315 g/mol
Write a balanced equation for the reaction that occurs in each of the following cases: (a) Cesium is added to water. (b) Strontium is added to water.
Find the PH of the final mixture when a solution containing two weak acids, i.e., 4mM ethylene (Kb1=4.72x10-4) and 2mM ethylene (Kb2=10-4) is titrated with twice its volume of 3mM HCL
A 25.0-mL sample of 0.35 M HCOOH is titrated with 0.20 M KOH. What is the pH of the solution after 25.0 mL of KOH has been added to the acid? Ka = 1.77 × 10-4
what experimental variables must be controlled to assure reproducible absorbance data
The unknown solution is composed of 50.0 g of nitrobenzene and 5.00 mL of the liquid unknown. Freezing point for nitrobenzene is 5.20 degrees C
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