Physical Science Laboratory Template (5) (1)

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Safari File Edit View History Bookmarks Window Help Mon Sep 28 3:13 PM session.masteringchemistry.com Test Chapter 5 Hide Timer Item 16 16 of 20 v Complete I Review I Constants I Periodic Table A high-protein diet contains 63.6 g of carbohydrate, 5.9 g of fat, and 140 g of protein. TABLE 3.7 Typical Energy Values for the Three Food Турes Part A How much energy, in kilocalories, does this diet provide? (Round off the kilocalories to the tens place.) Food Type kcal/g kJ/g Express your answer to two significant figures and include the appropriate units. Carbohydrate 4 17 Fat 9. 38 Protein 4 17 Submit Previous Answers Completed; correct answer withheld by instructor Part B How much energy, in kilojoules, does this diet provide? (Round off the kilojoules to the tens place.) Express your answer to three significant figures and include the appropriate units. Submit Previous Answers Completed; correct answer withheld by instructor Provide Feedback Next > 00

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Figure 40 Petroleum 30 Natural gas Coal Nuclear electric power Hydroelectric power Wood 1800 1825 1850 1875 1900 1925 1950 1975 2000 Year Since 1800, the main sources of energy have been fossil fuels, with other sources contributing less than 20% of the total. Chapter 3, Question 49 Using information in the figure above, calculate the total world energy consumption in 1975. i x 10 i kJ eTextbook and Media Save for Later Attempts: 0 of 3 used Submit Answer Energy consuption by source, 1018 kJ/yr

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For Lab 4 Energy of food content Experiment, use the following data. The specific heat (Water) is 1.00 cal/g°C. Make sure to fill up all of the Table 1, 2, 3, 4 such as your post-lab report.  a) What is Average energy content of sample (Cal/g)? b) What is Theoretical energy content of sample (Cal/g)? c) What is the Percent Error (%) of Experimental energy content of sample?

Review the table of energy use versus land resources below. The perpetual column refers to the same land used repeatedly for the same energy resource. One-time use means new land would be needed to provide the resource again. Reclamation refers to the restorative processes necessary to return the land to what it once was Energy Use Vs. Land Resources Acres of land Land use Electricity over 75 years (GWh) Acres of land (perpetual) per year Reclamation options (One time use) Nuclear (mining) 16.66 16.66 Coal (mining) 11.11 11.11 Biomass 0.40 18 Solar 25.00 8.33 Wind 2.90 26 Hydropower 2.50 30 According to the data, which of the following energy sources uses land least efficiently compared to its energy output? O Solar energy O Wind energy O Hydropower O Coal energy Very high cost (radioactive) Costly (<1% reclaimed) Replant trees/crops Remove or replace panels and dual use of land Remove or replace turbines and dual use of land Drain dam + restoration

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Figure 40 Petroleum 30 Natural gas 20 Coal Nuclear electric 10 power Hydroelectric power Wood 1800 1825 1850 1875 1900 1925 1950 1975 2000 Year Since 1800, the main sources of energy have been fossil fuels, with other sources contributing less than 20% of the total. Chapter 3, Question 49 Your answer is incorrect. Using information in the figure above, calculate the total world energy consumption in 1975. i ! x 10 ! kJ Energy consuption by source, 108 kJ/yr

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ew History Bookmarks People Tab Window Help w G SAG e.com/document/d/1IngiVO4vZgN7zxo5WpejCwwB7RZo7jbRulXtqqucgiw/edit e A Maps neet: What is the Initial Temperature of the Hot Water ert Format Tools Add-ons Help Last edit was 7 minutes ago Normal text Times New. 12 BIUA 三 =▼三▼EE 3 4 .5 12. a. An ice-cold piece of aluminum metal is added to 50.0 g of hot water. Given the average initial temperature calculated above for the hot water, calculate the heat, q, in joules of the piece of aluminum metal if the final temperature of the water is 40.0 °C. The specific heat of water is 4.184 J/g-°C. b. Calculate the grams of aluminum metal used if the specific heat of aluminum is 0.895 J/g-°C C and the initial temperature of it is 0.0°C. 23 tv & 7 8. 9

command option General Chemistry II Laboratory Manual, 2019 Revsion 39 Questions: 1) When you set up the temperature probe using Capstone, you did not calibrate it to read the correct temperature. It's possible that the probe reads temperatures that are Thi consistently off by 1 or 2°C. Why won't this affect your results for this experiment? Explain your answer.

Paraphrasing .ewriting Tool Car note Pirate Ship BLACKBOARD [Review Topics] [References) Calculate strain energy for the conformer pictured below, using strain energy increments from the table. Strain Energy for Alkanes Interaction / Compound kJ/mol kcal/mol H: H eclipsing 4.0 1.0 H: CH3 eclipsing 5.8 1.4 CH3 : CH3 eclipsing 11.0 2.6 gauche butane 3.8 0.9 cyclopropane 115 27.5 cyclobutane 110 26.3 cyclopentane 26.0 6.2 cycloheptane 26.2 6.3 cyclooctane 40.5 9.7 (Calculate your answer to the nearest 0.1 energy unit, and be sure to specify units, kJ/mol or kcal/mol. The answer is case sensitive.) Previous Ne: Sav FEB 1 étv 14 MacBook Air DII DD 11 888 F9 F10 F8 F7 F6 F5 F4 & 2$ 7 8. 4 Y U ト

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[please answer with correct answer] Temperature is a measure of ____

what would happen if a rock was exposed to energy from the sun and then millions of years later to energy from the earth's interior? you must include: energy, magma, melting, sediment, and weathering.