-1.9C1, is put into a calorimeter (see sketch at right) that A sample of polystyrene, which has a specific heat capacity of 1.880 J-g contains 200.0 g of water. The polystyrene sample starts off at 92.7 °C and the temperature of the water starts off at 15.0 °C. When the temperature of the water stops changing it's 23.1 °C. The pressure remains constant at 1 atm. Calculate the mass of the polystyrene sample. Be sure your answer is rounded to 2 significant digits. 1g X insulated container water sample. a calorimeter

-1.9C1, is put into a calorimeter (see sketch at right) that A sample of polystyrene, which has a specific heat capacity of 1.880 J-g contains 200.0 g of water. The polystyrene sample starts off at 92.7 °C and the temperature of the water starts off at 15.0 °C. When the temperature of the water stops changing it's 23.1 °C. The pressure remains constant at 1 atm. Calculate the mass of the polystyrene sample. Be sure your answer is rounded to 2 significant digits. 1g X insulated container water sample. a calorimeter

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

A 3.971 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of the calorimeter and its contents increase from 24.87 ∘C to 28.06 ∘C. The heat capacity (calorimeter constant) of the calorimeter is 36.35 kJ/ ∘C, what is the heat of combustion per gram of the material?
5) The combustion of sucrose (C12H22O11, molar mass = 342.3 g/mol) has a AErxn of -1.40 x 104 kJ/mol. When 1.25 grams of sucrose undergoes combustion in a bomb calorimeter, the temperature rises from 22.2 °C to 34.3 °C. What is the heat capacity of the bomb calorimeter? 0 5.39 kJ/C 05.90 ki 04.23 KJPC 04.90 ki/C
A researcher studying the nutritional value of a new candy places a 5.60 g5.60 g sample of the candy inside a bomb calorimeter and combusts it in excess oxygen. The observed temperature increase is 2.41 ∘C.2.41 ∘C. If the heat capacity of the calorimeter is 47.50 kJ⋅K−1,47.50 kJ⋅K−1, how many nutritional Calories are there per gram of the candy?
A student runs two experiments with a constant-volume "bomb" calorimeter containing 1100. g of water (see sketch at right). First, a 5.500 g tablet of benzoic acid (C6H5CO₂H) 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 18.00 °C to 48.06 °C over a time of 5.8 minutes. Next, 5.630 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 18.00 °C to 77.25 °C. Use this information, and any other information you need from the ALEKS Data resource, to answer the questions below about this reaction: C₂H₁(g) + 302(g) - 200,(s) + 2H,O(g) n thermometer stirrer ☑ chemical reaction "bomb" A "bomb" calorimeter. water insulation Be sure any of your answers that are calculated from measured data are rounded to the correct number of significant digits. Note for…
A 55.0 g sample of brass is put into a calorimeter (see sketch at right) that contains 100.0 g of water. The brass sample starts off at 86.7 °C and the temperature of the water starts off at 23.0 °C. When the temperature of the water stops changing it's 26.5 °C. The pressure remains constant at 1 atm. Calculate the specific heat capacity of brass according to this experiment. Be sure your answer is rounded to the correct number of significant digits. J 0- g-°C 0 x10 X thermometer. insulated container water sample a calorimeter
thermometer A 57.4 g sample of glass is put into a calorimeter (see sketch at right) that contains 100.0 g of water. The glass sample starts off at insulated 86.3 °C and the temperature of the water starts off at 18.0 °C. When the temperature of the water stops changing it's 24.1 °C. The container pressure remains constant at 1 atm. water Calculate the specific heat capacity of glass according to this experiment. Be sure your answer is rounded to the correct number of significant digits. sample a calorimeter
A 56.2 g sample of aluminum, which has a specific heat capacity of 0.897 J-g¹C¹, is put into a calorimeter (see sketch at right) that contains 250.0 g of water. The temperature of the water starts off at 24.0 °C. When the temperature of the water stops changing it's 26.9 °C. The pressure remains constant at 1 atm. Calculate the initial temperature of the aluminum sample. Be sure your answer is rounded to the correct number of significant digits. °C X Ś thermometer- insulated. container water sample a calorimeter
A researcher studying the nutritional value of a new candy places a 6.00 g6.00 g sample of the candy inside a bomb calorimeter and combusts it in excess oxygen. The observed temperature increase is 2.89 ∘C.2.89 ∘C. If the heat capacity of the calorimeter is 45.80 kJ⋅K−1,45.80 kJ⋅K−1, how many nutritional Calories are there per gram of the candy?
thermometer A 58.2 g sample of polystyrene is put into a calorimeter (see sketch at right) that contains 300.0 g of water. The polystyrene insulated container sample starts off at 89.1 °C and the temperature of the water starts off at 19.0 °C. When the temperature of the water stops changing it's 23.0 °C. The pressure remains constant at 1 atm. water Calculate the specific heat capacity of polystyrene according to this experiment. Be sure your answer is rounded to the correct number of significant digits. sample a calorimeter J Ox10 g.°C ?
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 runs two experiments with a constant-volume "bomb" calorimeter containing 1500. g of water (see sketch at right). First, a 6.500 g tablet of benzoic acid (CH₂CO₂H) 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 18.00 °C to 44.66 °C over a time of 14.6 minutes. Next, 4.910 g of ethanol (C₂H5OH) are put into the "bomb" and similarly completely burned in an excess of oxygen. This time the temperature of the water rises from 18.00 °C to 40.44 °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. Calculate the reaction enthalpy AHxn per mole of…
thermometer A sample of glass, which has a specific heat capacity of 0.670 J'g C', is put into a calorimeter (see sketch at right) that contains 200.0 g of water. The glass sample starts off at 92.3 °C and the temperature of the water starts off at 22.0 °C. When the temperature of the water stops changing it's 25.0 °C. The pressure remains constant at 1 atm. insulated container water sample- Calculate the mass of the glass sample. Be sure your answer is rounded to 2 significant digits. a calorimeter Terms of Use Pkacy Conte Check Reserved Explanation 2021 McGraw Hill LLC Address