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How many mL of an ethanol-water solution prepared by dissolving 15.0 cm3 of ethanol (density= 0.789 g cm-3) in sufficient water to produce 120.0 cm3 of solution (with a density of 0982 g cm-3) would have to be diluted with water to produce 400.0 mL 0f 0.150 M ethanol-water solution?
Why must we the wavelength bet set to 447nm when the FeSCN2+ solution is an orange-brown colour
Joe Schmoe mixed peroxide with yeast to generate oxygen gas and collected the gas in a graduated cylinder, using the same set up as was used in Experiment 11. He collected the following data
the number of moles in .452 grams of naclo4 the number and type of particle in .452 grams of naclo4 is it possible for
Separate samples of an aqueous solution of an unknown ionic salt are treated with dilute aqueous solutions of hydrochloric acid, sulfuric acid, and potassium hydroxide. Precipitates are formed in all three cases.
How many L of N2 gas are produced at STP when the airbag inflates if the airbag contains 132g of sodium nitride?
Using the Bohr equation for the energy of any level in a hydrogen atom, calculate the energy of each level, n=1 through n=8 and n=(infinity), f. Calculate change in Energy
Given a 1.00 g sample of each of the following metals at 50 degrees C, which would raise 100 g of water at 25 degrees C to the highest temperature?
What is the pH of a solution created by mixing 219 mL of a 1.64M NaHSO3 solution with 163 mL of a 1.81 M Na2S)3 solution
question what are a the energy b the momentum and c the wavelength of the photon that is emitted when a hydrogen atom
Draw and describe the mechanism of reaction (using arrows for electron pushing), is it SN1, SN2, E1 or E2? Does the acetaminophen have to deprotonate to the phenolate before reacting?
What is the common purpose of these precautions: flaming the apparatus before running the reaction; using a drying tube to separate the atmosphere inside the apparatus from the outside air;
Predict the products and show the reaction mechanism for the acid catalyzed Fischer esterification reaction between ethanol and acetic acid (CH3CO2H)
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