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- A power plant is driven by the combustion of a complex fossil fuel having the formula C11H7S. Assume the air supply is composed of only N2 and O2 with a molar ratio of 3.76:1.00, and the N2 remains unreacted. In addition to the water produced, the fuels C is completely combusted to CO2 and its sulfur content is converted to SO2. In order to evaluate gases emitted at the exhaust stacks for environmental regulation purposes, the nitrogen supplied with the air must also be included in the balanced reactions. a Including the N2 supplied m the air, write a balanced combustion equation for the complex fuel assuming 100% stoichiometric combustion (i.e., when there is no excess oxygen in the products and the only C-containing product is CO2). Except in the case of N2, use only integer coefficients. b Including N2 supplied in the air, write a balanced combustion equation for the complex fuel assuming 120% stoichiometric combustion (i.e., when excess oxygen is present in the products and the only C-containing product is CO2). Except in the case of use only integer coefficients c Calculate the minimum mass (in kg) of air required to completely combust 1700 kg of C11H7S. d Calculate the air/fuel mass ratio, assuming 100% stoichiometric combustion. e Calculate the air/fuel mass ratio, assuming 120% stoichiometric combustion.a. Write die balanced equation for the combustion of isooctane (C8H18) to produce water vapor and carbon dioxide gas. b. Assuming gasoline is 100.% isooctane, with a density of 0.692 g/mL, what is the theoretical yield of carbon dioxide produced by the combustion of 1.2 1010 gal of gasoline (the approximate annual consumption of gasoline in the United States)?Magnesium ribbon reacts with acid to produce hydro- gen gas and magnesium ions. Different masses of magnesium ribbon are added to 10 mL of the acid. The volume of the hydrogen gas obtained is a measure of the number of moles of hydrogen produced by the reaction. Various measurements are given in the table below. (a) Draw a graph of the results by plotting the mass of Mg versus the volume of the hydrogen gas. (b) What is the limiting reactant in experiment 1? (c) What is the limiting reactant in experiment 3? (d) What is the limiting reactant in experiment 6? (e) Which experiment uses stoichiometric amounts of each reactant? (f) What volume of gas would be obtained if 0.300 g of Mg ribbon were used? If 0.010 g were used?
- Propane (C3H8) reacts with air to form carbon dioxide (CO2) and water vapor. Write the balanced equation for this reaction and calculate the volume of carbon dioxide and nitrogen coming with air for combustion, which will be formed under standard conditions with 100 g propane (C3H8) fully reacted.The combustion of gasoline produces carbon dioxide and water. Assume gasoline to be pure octane (C8H18) and calculate how many kilograms of carbon dioxide are added to the atmosphere per 7.8kg of octane burned.Combustion of hydrocarbon such as heptane produces carbon dioxide, a greenhouse gas. Greenhouse gases in the earths atmosphere can trap the suns heat, raising the average temperature of the earth. For this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide.  A. Write a balanced chemical equation, including physical state symbols, for the combustion of liquid heptane into gaseous carbon dioxide and gaseous water. B. Suppose 0.260kg of heptane are burned in air at a pressure of exactly 1 atm and a temperature of 18°C. Calculate the volume of carbon dioxide that is produced in liters. Round your answer to three significant digits.
- . Gypsum has the formula CaSO4?2H2O. Plaster of Paris has the chemical formula CaSO4?12 H2O. In making wall plaster, water is added to plaster of Paris and the mixture then hardens into solid gypsum. How much water (in liters, at a density of 1.00 kg L-1 ) should be added to 25.0 kg of plaster of Paris to turn it into gypsum, assuming no loss from evaporation?Combustion of hydrocarbons such as butane (C4H10) produces carbon dioxide, a "greenhouse gas." Greenhouse gases in the Earth's atmosphere can trap the Sun's heat, raising the average temperature of the Earth. For this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide. 1. Write a balanced chemical equation, including physical state symbols, for the combustion of gaseous butane into gaseous carbon dioxide and gaseous water. _________________________________________________________ 2. Suppose 0.450kg of butane are burned in air at a pressure of exactly 1atm and a temperature of 14.0°C. Calculate the volume of carbon dioxide gas that is produced. Be sure your answer has the correct number of significant digits. ____ LWhen the equation H2 + Fe + H2O is completely balanced with the smallest whole numbers, the coefficient of H2 would be
- Given the chemical equation C4H10 + O2 ⟶ ⟶ CO2 + H2O, what coefficient is needed in front of C4H10 to produce a balanced equation?Combustion of hydrocarbons such as butane ( C4H10 ) produces carbon dioxide, a "greenhouse gas." Greenhouse gases in the Earth's atmosphere can trap the Sun's heat, raising the average temperature of the Earth. For this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide. Write a balanced chemical equation, including physical state symbols, for the combustion of gaseous butane into gaseous carbon dioxide and gaseous water. Suppose 0.480kg of butane are burned in air at a pressure of exactly 1atm and a temperature of 10.0°C . Calculate the volume of carbon dioxide gas that is produced. Be sure your answer has the correct number of significant digits.When in danger, bombardier beetles can fire a hot, toxic mixture of chemicals at their attacker. This mixture contains quinone, C6H4O2, a compound that is formed by the reaction of hydroquinone, CH4(OH)2, with hydrogen peroxide, H2O2. The equation for the overall reaction is: CH4(OH)2(aq) + H2O2(aq) → C6H4O2(aq) + 2H2O(ℓ) Use the following data to calculate the enthalpy change, in kJ mol-1 , for the above reaction. CH4(OH)2(aq) → C6H4O2 (aq) + H2(g) ΔH = +177.4 kJ mol−1 H2(g) + O2(g) → H2O2(aq) ΔH = −191.2 kJ mol−1 H2(g) + ½O2(g) → H2O(g) ΔH = −241.8 kJ mol−1 H2O(g) → H2O(ℓ) ΔH = −43.8 kJ mol−1
