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A typical automobile gets 30 miles per gallon of gas and drives 12,000 miles every year. Assuming that octane (C8H18, density 0.7025 g cm-3) is a principal component of gasoline;
How much oxygen is required for a car to run for 1 year?How much CO2 is produced by the car in 1 year?How many trees are required to remove the CO2 produced by the car in 1 year?
The smallest atoms can themselves exhibit quantum mechanical behavior. Calculate the de Broglie wavelength (in pm) of a hydrogen atom traveling 475 m/s
just find out what mass of the nahco3 reacts with the vitamin c when the tablet dissolves in h2o it fizzes because the
how many grams of aspirin are available for immediate absorption by the stomach? Assume immediate dissolution of aspirin and it does not significantly change the pH of the stomach contents. The pKa of aspirin is 3.50 and its molecular weight is 18..
the following changes in a DNA molecule may have no effect on the protein for which the DNA codes
The density of water is 1.00 g/ml, the density of dichloromethane is 1.32 g/ml. If you mix dichloromethane and water together, which layer will be on top and which layer will be on the bottom
The electrolysis of molten A12O3 at 980 ºC is used to produce metallic aluminum. A current of 520 A is used in the electrolysis cell. What is the rate of formation of aluminum
58.0 mL of a 1.30 M solution is diluted to a volume of 228 mL. A 114-mL portion of that solution is diluted using 141 mL of water.
100.0 g of nickel at 150 °C was placed in 1.00 L of water at 25.0 °C. The final temperature of the nickel-water mixture was 26.3 °C.
A mixture moistened with water and placed it in a desiccator (drying chamber) with silica gel to dry at 22C. the silica gel absorbed water vapor as the mixture dried.
Thomas Jefferson Snodgrass found an unlabelled reagent bottle in his -80 C freezer. The Bottle contained a liquid. He found that the compound( compound 1) quickly evaporated when warmed to room temperature. H-NMR of the compound showed only two pe..
In the laboratory a student combines 25.5 mL of a 0.203 M sodium nitrate solution with 24.3 mL of a 0.375 M manganese(II) nitrate solution.
Fifty percent of that sunlight is captured by the collector and heats the water flowing through it. What would be the temperature rise of the water as it leaves the collector?
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