How many pounds of carbon dioxide (CO2) are generated annually due to household electricity use based on the information below? The household uses 9350 kWh per year and the emission factor for electricity is 70.3 kg CO2 per MMBtu. The electricity power plant is 34% efficient. *Recall: 3412 Btu 1 kWh 1 kg = 2.20462 lb 1 MMBtu = 1,000,000 !3! Btu

How many pounds of carbon dioxide (CO2) are generated annually due to household electricity use based on the information below? The household uses 9350 kWh per year and the emission factor for electricity is 70.3 kg CO2 per MMBtu. The electricity power plant is 34% efficient. *Recall: 3412 Btu 1 kWh 1 kg = 2.20462 lb 1 MMBtu = 1,000,000 !3! Btu

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Hydrochloric acid can dissolve solid iron according to the following reaction. Fe (s) + 2 HCl(aq) → FeCl₂ (aq) + H₂ (9) Part A What minimum mass of HCl in grams would you need to dissolve a 3.0 g iron bar on a padlock? Express your answer using two significant figures. ΓΨΠ ΑΣΦ m = Submit Part B Request Answer m = ? ? Pearson How much H₂ would be produced by the complete reaction of the iron bar? Express your answer using two significant figures. ΓΨΠ ΑΣΦ 8.0 ? g 8.0 Copyright © 2023 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us |
The US Environmental Protection Agency (EPA) states "Every gallon of gasoline releases about 20 lbs of CO2 into the air." How many pounds of CO2 would you put into the air if you were the only passenger taking a cab traveling 64 miles that got 18 miles per gallon (mpg)? The answer is 71.11 lbs. but how do we get it?
Ethylene (CH₂CH₂) is the starting point for a wide array of industrial chemical syntheses. For example, worldwide about 8.0 × 10¹0 kg of polyethylene are made from ethylene each year, for use in everything from household plumbing to artificial joints. Natural sources of ethylene are entirely inadequate to meet world demand, so ethane (CH3CH3) from natural gas is "cracked" in refineries at high temperature in a kinetically complex reaction that produces ethylene gas and hydrogen gas. Suppose an engineer studying ethane cracking fills a 80.0 L reaction tank with 14.0 atm of ethane gas and raises the temperature to 850. °C. He believes K₂=0.60 at this temperature. alo Calculate the percent by mass of ethylene the engineer expects to find in the equilibrium gas mixture. Round your answer to 2 significant digits. Ar Note for advanced students: the engineer may be mistaken about the correct value of K, and the mass percent of ethylene you calculate may not be what he actually observes. % 0x₁…
Calcium carbonate is used in many antacids to neutralize stomach acid, as depicted by the following chemical equation: CaCO3(s) + 2 HCl(aq) → CaCl2 + H2O(l) + CO2(g) If 250. mg of calcium carbonate reacts with 2.609 g of hydrochloric acid, how much hydrochloric acid will remain? Provide your answer in g to 3 decimal places.
The laboratory compared the mass of the starting reactants and final products of the combustion reaction. A technician determined the mass of the firewood and oxygen reactants before burning to be 2.72 kg. After the firewood finished burning, the pile of cooled ash that remained had a mass of 0.095 kg. According to the law of conservation of mass, matter is neither created nor destroyed in a chemical reaction. Do the results of the technician’s combustion experiment contradict the law of conservation of mass?
Automobiles are often implicated as contributors to global warming because they are a source of the greenhouse gas CO2. How many pounds of CO2 would your car release in a year if it was driven 110. miles per week? Gasoline is a complex mixture of hydrocarbons. In your calculations, assume that gasoline is octane (molecular formula C8H18) and that it is burned completely to CO2 and H2O in the engine of your car. Also assume that the car averages 27.3 miles per gallon and that the density of octane is 0.703 g cm-3.
What steps do I take to convert .00368 x 103 kJ to microJ?
11)
What mass of natural gas (CH,) must you burn to emit 327 kJ of heat? CH4(g) + 2O2(g) → CO2(g) + 2H2O(g) ΔHxn = −802.3 kJ Express the mass in grams to three significant figures. m= [ΨΕΙ ΑΣΦ Ć ? 80
Ethylene (CH₂CH₂) is the starting point for a wide array of industrial chemical syntheses. For example, worldwide about 8.0 × 10¹0 kg of polyethylene are made from ethylene each year, for use in everything from household plumbing to artificial joints. Natural sources of ethylene are entirely inadequate to meet world demand, so ethane (CH₂CH3) from natural gas is "cracked" in refineries at high temperature in a kinetically complex reaction that produces ethylene gas and hydrogen gas. Suppose an engineer studying ethane cracking fills a 35.0 L reaction tank with 35.0 atm of ethane gas and raises the temperature to 400. °C. He believes K₂=0.20 at this temperature. Calculate the percent by mass of ethylene the engineer expects to find in the equilibrium gas mixture. Round your answer to 2 significant digits. Note for advanced students: the engineer may be mistaken about the correct value of Kp and the mass percent of ethylene you calculate may not be what he actually observes.
Given (2.30x10^6) grams of glucose, C6H12O6, calculate the grams of carbon dioxide, CO2, formed upon complete oxidation of the glucose. C6H12O6 + 6 O2 → 6 CO2 + 6 H2O Express your answer in three significant digits as grams. Note: Your answer is assumed to be reduced to the highest power possible.
For your new candle-making business, you need to purchase a large amount of a unique scented wax. You plan to charge $9.95 per large candle. The wax you need is availbale form a U.S. supplier for $25.80/lb and also from a German supplier for €12.62/kg. The current exchange rate is $1 €0.76, and 1 kg = 2.20 lb. What is the price of the wax from the U.S. supplier in €/kg? price: € /kg What is the price of the wax from the German supplier in $/lb? price: $ /lb