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A sheet of aluminum foil has a total area of 1.000ft^2 and a mass of 3.539g. What is the thickness of the foil? the question asks for the thickness of foil in millimeters and also tells that the density is 2.699 g/cm^3.
A 25.0-mL aliquot of vinegar was diluted to 250 mL on a volumetric flask. Titration of 50.0-mL aliquots of the diluted solution required an average of 34.88 mL of 0.09600 M NaOH. Express the acidity of the vinegar in terms of the percentage (w/v) ..
what is the final temperature of the block after the evaporation of the alcohol? Assume that the heat required for the vaporization of the alcohol comes only from the aluminum block and that the alcohol vaporizes at 25'C.
A canister is filled with 320 g of ice and 100 gm of liquid water, both at 0 C . The canister is placed in an oven until all the H_2O has boiled off and the canister is empty.
The U.S. Food and Drug Administration lists dichloromethane (CH2Cl2) and carbon tetrachloride (CCl4) among the many chlorinated organic compounds that are carcinogenic (cancer-causing).
The heat of combustion of naphthalene (C10H8) is - 5157 kJ/mol. Using these data and data in Appendix C, calculate the heat of hydrogenation of naphthalene.
Write a balanced chemical equation that shows the reaction that occurs when an aqueous solution of BaCl2 reacts with an aqueous solution of Na2SO4 to form aqueous sodium chloride and solid BaSO4. In your equation, you should indicate the physical ..
A liquid fuel mixture contains 31.30 \% hexane C6H14, 15.75 % heptane C7H16, and the rest octane C8H18. What maximum mass of carbon dioxide is produced by the complete combustion of 15.0 kg of this fuel mixture
Sulfur dioxide is made from the reaction of sulfur dioxide and oxygen: 2 SO2(g) + O2(g)to 2 SO3(g). What is the maximum volume of SO3 produced in a reaction of 1.91 g SO2 with 1.29 g O2? The SO3 gas is collected at STP conditions.
A 1-ft-diameter cylinder is closed on one end and fitted with a moveable piston on the other. With 1 atm applied pressure, the piston is located 20 ft from the closed end
When it is present in aqueous solution, the metal strontium, Sr, exists as an ion with a charge of +2. Given this information, state the chemical formula of the metal salt, strontium nitrate.
What is the change in internal energy (in J) of a system that absorbs 0.751 kJ of heat from its surroundings and has 0.314 kcal of work done on it
a 27.0 g sample of an unknown carbon-hydrogen compound was burned in excess oxygen to form 88.0 g of co2. what is a
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