Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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What mass of CO2 (in Kg) does the combustion of a 12-gallon tank of gasoline release into the atmosphere? Assume the gasoline is pure octane (C8H18) and that it has density of 0.70 g/mL. You will need a balanced chemical equation for combustion of octane.
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- The balanced equation for the combustion of butane, CAH10, is shown below. For your convenience, the molar mass of each substance is shown below their formulas (in purple). Use this information to make the requested calculation: 2 CAH10(g) + 13 02(g) --> 8 CO2(g) + 10 H20(1) 58.124 32 44.011 18.016 How many liters of oxygen gas would be necessary to burn 18.2 g of butane?arrow_forwardThe 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.arrow_forwardAspirin can be made in the laboratory by reacting acetic anhydride (C4H6O3C4H6O3) with salicylic acid (C7H6O3C7H6O3) to form aspirin (C9H8O4C9H8O4) and acetic acid (C2H4O2C2H4O2). The balanced equation isC4H6O3+C7H6O3→C9H8O4+C2H4O2C4H6O3+C7H6O3→C9H8O4+C2H4O2In a laboratory synthesis, a student begins with 3.10 mLmL of acetic anhydride (density=1.08gml−1density=1.08gml−1) and 1.23 gg of salicylic acid. Once the reaction is complete, the student collects 1.22 gg of aspirin. Determine the percent yield of aspirin for the reaction. Express your answer using three significant figures.arrow_forward
- 1a) Balance the equation C8H18 + O2 ---> CO2 + H2O 1b) How many pounds of CO2 are released when you consume 13 gallons of fuel in your vehicle? Density of C8H18=0.8 g/mLarrow_forwardAmmonia gas can be prepared by the reaction CaO(s) + 2NH4Cl(s) → 2 NH3(g) + H₂O(g) + CaCl₂ (s) In an experiment, 33.0 g of ammonia gas, NH3, is produced when it was predicted that 43.2 g NH3 would form. What is the theoretical yield of NH3 ? theoretical yield: What is the actual yield of NH3 ? actual yield: What is the percent yield of NH3 ? percent yield: 6.0 g 0.0 g %arrow_forwardBalance the following chemical equation (if necessary) for the combustion reaction of propane C3H8(g)+O2(g)_CO2(g)+H2O(g)arrow_forward
- What mass of CO2 is produced from the combustion of 1 gal of gasoline? The chemical formula of gasoline can be approximated as C8H18. Assume that there are 2801g of gasoline per gallon.arrow_forwardConsider the combustion reaction for octane (C,H2), which is a primary component of gasoline. 18 2 C3H13 + 25 0, → 16 CO, + 18 H,O How many moles of CO, are emitted into the atmosphere when 20.1 g C,H13 is burned? CO2 emitted: mol CO2arrow_forwardThe human body burns glucose (C6H₁2O6) for energy according to this chemical reaction: C6H₁206+60₂-6CO₂ + 6H₂O The products of the reaction are carbon dioxide (CO₂) and water (H₂O). Interestingly, all of the carbon dioxide and much of the water exits the body through the lungs: on every breath, the average person exhales 500. mL of air, which is typically enriched to 4% CO₂ and 5% water vapor by volume. In short, when a person loses weight by dieting, the weight that is lost actually departs his body as a gas, every time he exhales. Each kilogram of body fat lost requires exhaling about 2.8 kg of carbon dioxide. Calculate how many breaths it takes an average person to "exhale" 3.00 kg of fat. Round your answer to the nearest thousand. You'll need to know that the density of CO₂ is 2.0 kg/m³. 0 Xarrow_forward
- Methane and hydrogen sulfide react to form hydrogen and carbon disulfide, like this: CH4(g)+2H2S(g)→4H2(g)+CS2(g) Use this chemical equation to answer the questions in the table below.arrow_forwardmagnesium oxide can be produced by heating magnesium metal in the presence of oxygen. When 10.1 g of Mg reacts with 10.5 g of O2, 11.9 g of MgO are collected. What is the balanced equation for this reaction, including all states of matter?arrow_forwardThe balanced equation for the decomposition of potassium chlorate is shown below. When carried out in lab, this reaction is found to produce 1.2 g of potassium chloride. For your convenience, the molar mass of each substance Is shown below their formulas (in purple). Use this Information to make the requested calculation: 2 KCIO3(s) -> 2 KCI(s) + 3 02(g) 122.551 74.551 32 Determine the percent yield if the reaction consumes 2900 mg of potassium chlorate:arrow_forward
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