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Limiting Reactants and Theoretical Yields A mixture of 5.0 mL of t-butyl chloride and 100 mL of methanol was refluxed for 2 hours. After neutralizing any remaining hydrogen chloride, 3.5 grams of t-butyl methyl ether was isolated. Calculate the percent yield of the t-butyl methyl ether. MW: 93 g/mol 32 g/mol 88 g/mol Denisty: 0.85 g/mL 0.79 g/mL A mixture of 3.0 g of 1,1-diphenylethylene and 100 mg of sulfuric acid was heated for 2 hours. Upon cooling, 2.2 grams of crystalline 1,1,3,3-tetraphenyl-3-methyl-1-butene precipitated from the mixture. What is the percent yield of the crystalline product? MW: 180 g/mol 98 g/mol 360 g/mol
Using standard reduction potentials, calculate the equilibrium constants for the following reactions.
During a photochemical smog episode in a coastal city, the steady-state concentration of oxygen radicals at ground level was measured to be 0.09 ppmv at 25 degrees celsius.
A solution of ethanol (C2H6O) in water is sometimes used as s disinfectant. 1.00 L of this solution contains 553 g or ethanol and 335 g of water. What is the mole fraction of ethanol in this solution.
How many thermodynamic degrees of freedom are available to an equilibrium system consisting of an ice cube floating in a glass of water
A student added a total of 15.00 mL of 0.5241 M HCl to 1.4881 g to of an unknown which contained CaCO3 (molar mass = 100.09 g/mol). The resulting solution required 12.21 mL of 0.1211 M NaOH to back titrate the excess HCl. What was the percent CaCO..
Calculate how much energy in the form of heat is available from 100mL of this mixture and compare it with the amount available from pure gasoline
Identifying an unknown hydrocarbon, Is it possible to identify what the hydrocarbon is with just knowing the volume of it (9.61 ml), the mass (7.669 g/ml), density (0.798 g/ml)?
The acid dissociaton constant Ka, for nitrous acd is 4.4x10^-4, what is the basicity constant Kb for the conjugaed base, nitrite, NO2-? HNO2+H20 H3O+ +NO2-
How many liters of the antifreeze ethylene glycol [CH2(OH)CH2(OH)] would you add to a car radiator containing 6.50 L of water if the coldest winter temperature in your area is -20°C?
Vitamin b6 is needed in the metabolism of amino acids. When it binds to an enzyme it forms a complex with the e-amino group of lysine, which is a primary amine.
Calculate the amount of isopentyl acetate that should be present in the reaction mixture at equilibrium based on 300 mmol of acetic acid and 150 mmol of isopentyl alcohol as starting quantities.
Why did the discrepancy between experiments and classical theory for blackbody radiation occur at high and not low frequencies
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