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Ethanol (C2H6O), the intoxicant in alcoholic beverages, is also used as a precursor of many other organic compounds. In acid solution, ethanol forms diethyl ether (C4H10O): 2 C2H6O --> C4H10O + H2O If 50.0 g of ethanol yields 33.9 g of diethyl ether, what is the percent yield for the reaction?
why do we have to make sure we light the fire and remove the lighter quickly to burn the nuts
In a gas mixture, the partial pressures are argon 425 , neon 60 , and nitrogen 125 .What is the total pressure exerted by the gas mixture?
What is the total mass of AlCl3 in this sample? b. How many moles of AlCl3 are in this sample?
What volume of H2 could be produced at a temperature of 19 oC and a pressure of 764 torr by the reaction of 2.98 g of aluminum with hydrochloric acid.
Express the concentration of a 0.0720 M aqueous solution of fluoride, F-, in mass percentage and in parts per million
Calculate the pH at the points in the titration of 40.00 mL of 0.425 M NH3 for the reaction below. NH3(aq) + HNO3 ? NH4+(aq) + NO3?(aq) For NH3, Kb = 1.8x10-5.
Hydrogen gas, H2(g), reacts with iodine gas, I2(g), to form HI(g) by the following proposed reaction mechanism with the listed hypothetical activation energies
a solution of sodium cyanide (NaCN) has a pH of 12.10. How many grams of NaCN are in 425 mL of solution with the same pH
Calculate the mass of water formed by the complete reaction of 935 g of propane (C3H8) with excess oxygen. (Write a balanced equation)
Draw the valence electron structures (Lewis structures) for the following atoms: Magnesium, Carbon, Bromine, Neon.
How many mL Hydrochloric acid of 0.1 M must be added to 100 mL of a 0.2 M solution of tris base to form a buffer ( pH 7.8)?
A 10g sample containing an analyte was transferred to a 250 mL flask and diluted to volume. A 10mL aliquot of this solution, diluted to 25mL, yielded a signal of .235 units. A second 10 mL aliquot was spiked with 10mL of 1ppm standard solution of ..
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