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Many power plants produce energy by burning carbon-based fuels, which also produces carbon dioxide. Carbon dioxide is a greenhouse gas, so over-production can have negative effects on the environment. Use enthalpy of formation data to calculate the number of moles of CO2(g) produced per megajoule of heat released from the combustion of each fuel under standard conditions (1 atm and 25 °C).
Each must be in mol * MJ^-1
(a) coal, C(s, graphite)(b) natural gas, CH4(g);(c) propane, C3H8(g);(d) octane, C8H18(l) (?Hf° = -250.1 kJ ·mol^-1).
At 50°C the vapor pressure of ethanol is 0.30 atm, acetic acid is 0.08 atm, water is 0.12 atm, and acetone is 0.84 atm. A) Arrange these substances in order of increasing rates of evaporation.
When hydrogen sulfide gas is bubbled into a solution of sodium hydroxide, the reaction forms sodium sulfide and water. How many grams of sodium sulfide are formed if 2.00 g of hydrogen sulfide
1.If 2.47 g of salicylic acid is reacted with 61 mL methanol, what is the maximum mass of product (oil of wintergreen) that could be formed?
It is burned in excess O2 to form a mixture of water and carbon dioxide that contains 1.5 times as many moles of CO2 as of water. Find the mass of C2H2 in the original mixture.
How can you separate the three compounds used in a experiment by extraction if you begin the process (by mistake) with an aqueous NaOH-solution (instead of NaHCO3- solution)
Calculate the solubility product constant for Pb(IO3)2 (4.3 x 10^-5 M), given that the molar concentration of saturated solution is as indicated in parenthesis.
Find the partial pressure of each produce and the total pressure in the flask at the end of the reaction.
The methane is heated by a stream of saturated steam entering the heat exchanger at 1.9 bar and leaving as a liquid at 60.0°C. Find the volumetric flow rate of saturated steam into the heat exchanger by following the steps below
If Prozac was treated with bromine and was brominated once what would be the most likely produc
What mass of Copper (II) Hydroxide precipiate is produced by the double displacement reaction in a solution of 2.67g of potassium hydroxide
How much helium gas would it take to ?ll a gas balloon with a volume of 1020 cm 3 when the temperature is 39.0? C and the atmospheric pressure is 724 mm Hg? Answer in units of mol.
Does this show that they are identical structures? If not what additional TLC experiments might one perform to ascertain the identity of the unknown?
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