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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?
what minimum requirement is needed to obtain reproducible results with a single beam spectrophotometer
If a solution is made by adding 83 grams of sodium hyroxide to 750 ml of water what is the percent by mass of sodium hydroxide in this solutions ?
Calculate the pH and pOH of each of the following solutions. [H3O+] = 1.5x10^-8 M? [H3O+] = 1.0x10^-7 M? [H3O+] = 2.2x10^-6 M
calculate the number of grams of xenon in 3.940 g of the compound xenon tetrafluoride. In grams please.
7.65.50 mL of 0.161 M HF is titrated with 0.1200 M NaOH. What is the pH after 65.50 mL of base have been added? (Ka for HF is 6.8 x 10-4)
sulfuric acid (H2SO4) by mass has a density of 1.221 g/mL. Determine the molarity of the solution.
Please balance the following equation at 25 degrees C by writing the correct coefficients in the spaces provided
Kr (g) in a 18.5 L cylinder exerts a pressure of 11.2 atm at 28.2 °C. How many grams of gas are present
Given a solution containing 0.01M of lead chloride and 0.01M of lead chromate, calculate the concentration of Pb2+. Using the Ksp(PbCl2)=1.7x10^-5 and Ksp(PbCrO4)=1.77x10^-14. What is the solid remaining?
What would you predict the flux of glucose through glycolysis and gluconeogenesis is in the mutant bacterium compared to the wild type, is it likely to be increased or decreased
a balloon is filled to a volume of 7.0 102 ml at a temperature of 39.0degc. the balloon is then cooled at constant
How much energy is released in (kJ) in the fusion reaction 2^H to yield 1 mol of 3^He? The atomic mass of 2^H is 2.0141 amu, and the atomic mass
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