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A gaseous fuel mixture stored at 743 mmHg as well as 298 K contains only methane CH4 and propane C3H8. Explain when 11.1 L of this fuel mixture is burned, it produces 774 kJ of heat.
Define what is the mole fraction of methane in the mixture? Presume that the water produced by the combustion is in the gaseous state.
When chromium crystallizes, it forms body-centered cubic cells. The unit cell edge length is 288.7 pm. Calculate the density of chromium
A specific steroid has ?max = 213 nm and molar absorptivity ? = 11,500. What is the concentration of the compound in a solution whose absorbance at 213 nm is A = 0.060 with a sample pathlength of 1.00 cm?
Sorbic acid, CH2CHCHCHCH2CO2H (pKa= 4.77), is widely used in the food industry as a preservative. For example, its potassium salt (potassium sorbate) is added to cheese to inhibit the formation of mold. What is the pH of the 0.37 M potassium sorba..
Calculate the concentration of the Na2S2O3 solution if 30.70 mL of a 0.2210 M I2 solution react exactly with a 100.0 mL sample of the Na2S2O3 solution.
Calculate the pH during the titration of 100.0 mL of 0.200 M HCl with 0.400 M NaOH. First what is the initial pH (before any NaOH is added)? - What is the pH after 38.4 mL of NaOH are added?
what are the steps to calculate the followingnbspnbsphow many grams of barium sulfate are produced if 25.34 ml of 0.113
Equal Numbers of moles of H2 gas and I2 vapor are mixed in a flask and heated to 700 degrees celcius. The initial concentration of each gas is 0.0088 mol/L and 78.6% of the I2 is consumed when equlibrium is achieved according to the equation
A mixture containing 0.232 mol He(g), 0.163 mol H2(g), and 0.161 mol N2O(g) is confined in a 22.00 L vessel at a constant temperature. The total pressure is 1.16 atm. Calculate the mole fraction of N2O(g) in the mixture.
A sample of gas is confined to a cylinder housed with a movable piston. The gas occupies a volume of 1.8 L at 1.8 atm and 25°C. Calculate the volume of the gas sample if the pressure is increased to 8.6 atm at constant temperature.
calculate the standard reduction potential of Joaquium. Write reaction in cell notation form.
Compute the freezing point of the solution (assume a density of 1.00 g/ml for water) and Compute the boiling point of the solution (assum a density of 1.00 g/ml for water)
Give the IUPAC name for each of the following compounds. Do not forget to use commas to separate locant numbers from each other and to use hyphens to separate locant numbers from letters.
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