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 (C3Hg) 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: X S

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 (C3Hg) 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: X S

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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On a 5 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 (C3H8) 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 -103.8 kJ/mol. You'll probably find other helpful data in the ALEKS Data resource. canisters: 13 X G 000 Ar
An experiment was performed to calculate the heat of solution for potassium fluoride. Use the following data to determine its heat of solution. Assume that the specific heat capacity of the solution produced is the same as that of water, 4.184 J⁄g·°C. Identity of Salt KF Mass of water in calorimeter (g) 52.42 Mass of salt sample (g) 7.32 Initial temperature of Calorimeter (°C) 20.8 Final temperature of Calorimeter (°C) 30.3 Report your answer in kJ/mol to 3 significant figures.
On a 10 day wilderness expedition you'll need to heat 5.0kg 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 25.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/kJmol . You'll probably find other helpful data in the ALEKS Data resource.
Disaccharides Disaccharides are carbohydrates composed of two monosaccharide units that are joined by a carbon-oxygen-carbon linkage known as a glycosidic linkage. Circle the disaccharide linkage in each of these disaccharides below. OH glucose OH HO HO OH HO HO HO но OH HO- HO OH OHO- HO OH HO glucose OH OH glucose OH OH OH glucose galactose -OH OH fructose maltose lactose sucrose There are different types of glycosidic linkages. They are characterized by the numbering of the alcohols that are linked in the ether. And the anomer of the sugar. For the maltose shown here, the sugars are [a/ẞ] anomers. Circle one. • Which alcohols are linked? Numbering proceeds around the ring starting with the anomeric carbon. OH HO HO HO 6 4 5 OH OHO- glucose 3 OH OH glucose Thus, this is alpha-1,4-maltose. Draw ẞ-1,4-maltose, where the glucose on the right has isomerized. 3 5 60
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Could you please assist me with some answers to my questions?
THERMODYNAMICS: A 1.4 g sample of acetic acid (HC2H302) was burned in excess oxygen in a bomb calorimeter. The calorimeter, which alone had a heat capacity of 2.67 kJ/°c, contained 7 g of water. The temperature of the calorimeter and its contents increased from 22.59°C to 27.95°c. What is AH (in kJ) for the combustion per 1.00 mol of acetic acid? MW of acetic acid is 60 g/mol. (Round off the final answer to ONE decimal place. Do not include the unit.)
THERMODYNAMICS: A 1.71 g sample of acetic acid (HC2H302) was burned in excess oxygen in a bomb calorimeter. The calorimeter, which alone had a heat capacity of 2.67 kJ/°C, contained 7 g of water. The temperature of the calorimeter and its contents increased from 23.09°C to 27.95°C. What is AH (in kJ) for the combustion per 1.00 mol of acetic acid? MW of acetic acid is 60 g/mol. (Round off the final answer to ONE decimal place. Do not include the unit.)
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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2 A student determines the heat of dissolution of solid cobalt(II) sulfate using a coffee-cup calorimeter of negligible heat capacity. When 1.34 g of CoSO4(s) is dissolved in 101.00 g of water, the temperature of the solution increases from 25.00 to 26.69 °C. Based on the student's observation, calculate the enthalpy of dissolution of CoSO4(s) in kJ/mol. Assume the specific heat of the solution is 4.184 J/g°C.
THe G.R.A.S.P. method