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A certain alcoholic beverage contains only ethanol (C2H6O) and water. When a sample of this beverage undergoes combustion, the ethanol burns but the water simply evaporates and is collected along with the water produced by combustion. The combustion reaction is:C2H6O (l) + 3O2 (g) ->2CO2 (g) + 3H2O (g).
When a 10.53g sample of this beverage is burned, 11.45g of water is collected, what is the mass in grams of ethanol in the original sample? What is the mass in grams of water in the original sample?
Calculate the concentrations of the protoneated and unprotonated forms of bromothymol blue in 100 mL of a pH 8.1 buffer solution to which 1.0 mL of 0.005 M solution of bromothymol blue in 80% wate/20%ethanol has been added.
A compound is found to have a molar mass of 598 g/mol. If 35.8 mg of the compound is dissolved in enough water to make 175 mL of solution at 25°C, what is the osmotic pressure of the resulting solution?
draw correlation diagram the HOMO of allyl anion and the LUMO of ethylene and comment on the symmetry match of the two.
An unknown carbohydrate compound has the empirical formula CH2O. A solution consisting of 0.515 g of the carbohydrate dissolved in 1.717 g of acetic acid freezes at 8.8°C
A glass bottle of normal capacity 250 cm^(3) is filled brim full of water at 20 degrees Celsius. If the bottle and contents are heated at 50 degrees Celsius, how much water spills over?
these three particles which would require radiation of the lowest wavelenth to excite its electron from the ground state to the second energy level?
In the diels-alder reaction of cyclopentadiene and maleicanhydride what are the two side reactions of cyclopenadiene
Determine value for the rate of formation of HCl during the same interval of 3 seconds If the rate of disappearance H2 = -0.13 M/s at this specific time?
Describe the three types of models (layer sequence drawings, computer graphics, balls and sticks) used for visualizing the three dimensional structure of unit cells
3H2 + N2 -> 2NH3. At 200 degrees C in a closed container, 1.00atm of nitrogen gas is mixed with 2.00atm of hydrogen gas. At equilibrium, the total partial pressure is 2.00atm.
In the laboratory, a student named Georgia weighed 4.75 grams of an unknown solid mixture containing benzoic acid, copper (II) sulfate and sand. She added 15mL of acetone to her sample. Which component of the mixture is dissolved in the acetone?
A given compound has the following solubility properties. At room temperature, it is souble in diethyl ehter but insoluble in both ethanol and water At high temperatures,
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