On a 14 day wilderness expedition you'll need to heat 2.0 kg of water to the boiling point each day. The air temperature will average 25 °C. You have available canisters of compressed butane (C4H10) fuel, which you'll burn to heat the water. Each canister has 100. g of butane in it. What is the minimum number of fuel canisters you must bring? The standard heat of formation of butane at 25 °C is - 125.7 kJ/mol. You'll probably find other helpful data in the ALEKS Data resource. :0 canisters: X

On a 14 day wilderness expedition you'll need to heat 2.0 kg of water to the boiling point each day. The air temperature will average 25 °C. You have available canisters of compressed butane (C4H10) fuel, which you'll burn to heat the water. Each canister has 100. g of butane in it. What is the minimum number of fuel canisters you must bring? The standard heat of formation of butane at 25 °C is - 125.7 kJ/mol. You'll probably find other helpful data in the ALEKS Data resource. :0 canisters: X

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...

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Gram for gram, fats in food have much more chemical energy than sugar. One component of fat is stearic acid, C18H36O2. When a sample of 1.02 g of stearicd acid was burned completely in a bomb calorimeter, the temperature of the calorimeter rose by 4.26 oC. The heat capacity of the calorimeter was 9.43 kJ/oC. Calculate the molar heat of combustion of stearic acid in kilojoules per mole. answer: (-11189 kJ/mol)
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On a 7 day wilderness expedition you'll need to heat 2.0 kg of water to the boiling point each day. The air temperature will average 25 °C. You have available canisters of compressed propane (C,H) fuel, which you'll burn to heat the water. Each canister has 25. g of propane in it. What is the minimum number of fuel canisters you must bring? The standard heat of formation of propane at 25 °C is – 103.85 kJ/mol. You'll probably find other helpful data in the ALEKS Data resource. canisters:
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THe G.R.A.S.P. method
A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods. In an experiment, a 1.4710 g sample of maleic acid (C4H4O4) is burned completely in a bomb calorimeter. The calorimeter is surrounded by 1159 g of water. During the combustion the temperature increases from 22.46 to 25.59 °C. The heat capacity of the calorimeter, not including the surrounding water, was determined in a previous experiment to be 852.2 J/°C. Assuming that no energy is lost to the surroundings, calculate the molar heat of combustion of maleic acid based on these data. Assuming that no energy is lost to the surroundings, what is the molar heat of combustion of maleic acid, based on these data? (in kJ/mol). C4H4O4(s) + 3O2(g) → 2 H2O(l) + 4 CO2(g) + Energy
A quantity of 2.00×102 mL of 0.786 M HCl is mixed with 2.00×102 mL of 0.393 M Ba(OH)2 in a constant-pressure calorimeter of negligible heat capacity. The initial temperature of the HCl and Ba(OH)2 solutions is the same at 20.76°C. For the process below, the heat of neutralization is −56.2 kJ/mol. What is the final temperature of the mixed solutions? H+(aq) + OH−(aq)→H2O(l) _____°C
Chemistry 14) A 60.0 mL quantity of 0.80 M HCI is mixed with 60.0 mL of 0.80 M KOH in a constant pressure calorimeter with negligible heat capacity. If the initial temperatures of both solutions are equal to 20.24°C. Calculate the heat change of the neutralization reaction if the final temperature of the mixture is 30.0°C. Assume that the densities and specific heats of the solutions are the same as those of water (1.00 g/mL and 4.184 J/g °C, respectively). Note: this point is worth 10 points. A) + 4900.3 J B)-1171.2 J C)-2450.15 J D)-4900.3 J
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On a 14 day wilderness expedition you'll need to heat 3.0 kg of water to the boiling point each day. The air temperature will average 25 °C. You have available canisters of compressed propane (C₂Hg) fuel, which you'll burn to heat the water. Each canister has 50. g of propane in it. What is the minimum number of fuel canisters you must bring? The standard heat of formation of propane at 25 °C is -103.8 kJ/mol. You'll probably find other helpful data in the ALEKS Data resource. canisters: 0 X Ś