2. PREVIOUS ANSWERS OSATOMSCHEM2 9.2.0.030. MY NOTES ASK YOUR TEACHER When 1.3 g of fructose, CO), a sugar commonly found in fruits, is burned in oxygen in a bomb calorimeter, the temperature of the calorimeter increases by 2.03°C. If the heat capacity of the calorimeter and its contents is 9.02 kamC, what is a (in kJ) for this combustion? DETAILS xu Dar a number with the comet unber of pare pures

2. PREVIOUS ANSWERS OSATOMSCHEM2 9.2.0.030. MY NOTES ASK YOUR TEACHER When 1.3 g of fructose, CO), a sugar commonly found in fruits, is burned in oxygen in a bomb calorimeter, the temperature of the calorimeter increases by 2.03°C. If the heat capacity of the calorimeter and its contents is 9.02 kamC, what is a (in kJ) for this combustion? DETAILS xu Dar a number with the comet unber of pare pures

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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4 Having just invented a new type of calorimeter, Dr. Campbell needs to determine the heat capacity of the calorimeter. She carries out the following experiment to do this: She puts 20.0 grams of water in her empty calorimeter and it is allowed to stabilize at a temperature of 25.0ºC. She then adds 32.035 grams of water at a temperature of 83.2ºC to the calorimeter. After a few minutes the final temperature of the calorimeter stabilizes at 41.6ºC. Based on this experiment, what is the heat capacity of her calorimeter assuming units of J/ºC? Enter your answer with at least 3 sig figs.
A researcher studying the nutritional value of a new candy places a 4.90 g sample of the candy inside a bomb calorimeter and combusts it in excess oxygen. The observed temperature increase is 2.61 °C. If the heat capacity of the calorimeter is 48.50 kJ-K-, how many nutritional Calories are there per gram of the candy?
A 30.00 g sample of a solid was heated in a test tube to 100.00o C in boiling water and carefully added to a coffee cup calorimeter containing 40.00g of water. The water temperature increased from 25.00o C to 29.50o C. What is the specific heat capacity of the solid? (Assume all the heat is gained by the water) The heat capacity of water is 4.18 J/(go C)
A student has a coffee-cup calorimeter with 50.0 g of water at 21.5oC. They introduce 15.525 g of magnesium metal initially at 100.0oC. The final temperature of the calorimeter came to 27.2oC. What is the value of T magnesium in kelvin?
A student runs two experiments with a constant-volume "bomb" calorimeter containing 1400. g of water (see sketch at right). First, a 5.000 g tablet of benzoic acid (CH-CO₂H) is put into the "bomb" and burned completely in an excess of oxygen. (Benzoic acid is known to have a heat of combustion of 26.454 kJ/g.) The temperature of the water is observed to rise from 21.00 °C to 42.00 °C over a time of 8.5 minutes. Next, 5.190 g of ethylene (C₂H4) are put into the "bomb" and similarly completely burned in an excess of oxygen. This time the temperature of the water rises from 21.00 °C to 63.35 °C. Use this information, and any other information you need from the ALEKS Data resource, to answer the questions below about this reaction: Is this reaction exothermic, endothermic, or neither? If you said the reaction was exothermic or endothermic, calculate the amount of heat that was released or absorbed by the reaction in the second experiment. exothermic C₂H₂(g) + 30₂(g) → 2CO₂(g) + 2H₂O(g) Be…
A student has calibrated his/her calorimeter and finds the heat capacity to be 14.8 J/°C. S/he then determines the molar heat capacity of aluminum. The data are: 25.7 g Al at 100.0°C are put into the calorimeter, which contains 99.8 g H20 at 18.5°C. The final temperature comes to 22.6°C. Calculate the heat capacity of Al in J/mol-°C
A student has a coffee-cup calorimeter with 50.0 g of water at 21.5oC. They introduce 15.525 g of magnesium metal initially at 100.0oC. The final temperature of the calorimeter came to 27.2oC. What is Cmagnesium in J/g-K?
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