ich represents the definition of pressure A) volume x force B) volume/density C) force/area D) moles/volume E) temperature x area Determine the specific heat capacity of a newly developed alloy of nickel metal, given the following calorimetry results. When a 85.66 g sample of the alloy, initially at 90.0°C, is dropped into a coffee cup calorimeter containing 50.0 g of water at a temperature of 10.0°C, the alloy and water reach 25.0°C at equilibrium. (ASsume no heat losses, the density of water is 1.00 g/mL and the specific heat capacity of water is 4.18 J/g °C) A) 0.271 J/g C B) 4.18 J/g °C C) 0.678 J/g °C D) 0.563 J/g °C E) 0.951 J/g °C 8) What are the spectator ions in the reaction of HCl (aq) with AgNO3 (aq)? A) there are no spectator ions in this reaction B) H and N03- (77 DELL

ich represents the definition of pressure A) volume x force B) volume/density C) force/area D) moles/volume E) temperature x area Determine the specific heat capacity of a newly developed alloy of nickel metal, given the following calorimetry results. When a 85.66 g sample of the alloy, initially at 90.0°C, is dropped into a coffee cup calorimeter containing 50.0 g of water at a temperature of 10.0°C, the alloy and water reach 25.0°C at equilibrium. (ASsume no heat losses, the density of water is 1.00 g/mL and the specific heat capacity of water is 4.18 J/g °C) A) 0.271 J/g C B) 4.18 J/g °C C) 0.678 J/g °C D) 0.563 J/g °C E) 0.951 J/g °C 8) What are the spectator ions in the reaction of HCl (aq) with AgNO3 (aq)? A) there are no spectator ions in this reaction B) H and N03- (77 DELL

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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Il Metro by T-Mobile 1:06 AM n 24% Question 15 of 35 Submit Specific Heat Capacity J/(g•°C) Metal Aluminum 0.90 Сopper 0.38 Iron 0.45 Magnesium 1.00 Silver 0.23 Tin 0.32 Titanium 0.52 A) Fe B) Sn C) Ag D) Cu Tap here or pull up for additional resources
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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 21.42g sample of an unknown metal was heated to 99.5ºC, and the added to 50.00g of water contained in a foam coffee cup. The initial temperature of the water was 20.5ºC, and the final temperature of the metal and water was 25.1ºC. The calorimeter constant for the coffee-cup calorimeter was 13.5 J/ºC. What was the specific heat of the metal? * the answer is 0.64 J/gºC, but I need to know how to get there
When 1.836 grams of sucrose (Molar mass 342.3 g/mol) is burned in a bomb calorimeter, the temperature of the calorimeter increases from 22.41°C to 26.63°C. If the heat capacity of the calorimeter is 4.900 kJ/°C, what is the heat of combustion of sucrose?
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10 A student heats 84.17 mL of water to 95.27°C using a hot plate. The heated water is added to a calorimeter containing 73.92 mL of cold water. The water temperature in the calorimeter rises from 2.15°C to 37.48°C. The specific heat capacity of water is 4.184 J and the density of water is g. °C 1.00 mL Assuming that heat was transferred from the hot water to the cold water and the calorimeter, determine the heat capacity of the calorimeter. J Heat capacity of calorimeter = °C
Draw the reactants and complete the mechanism by drawing in the appropriate electron-flow arrows (including stereochemistry) for the following Sy2 reaction of an alkyl bromide. Represent the nucleophile as an ion. Draw all missing reactants and/or products in the appropriate boxes by placing atoms on the grid and connecting them with bonds, including charges where needed. Indicate the mechanism by drawing the electron-flow arrows on the molecules. Arrows should start on an atom or a bond and should end on an atom, bond, or where a new bond should be created. • View Available Hint(s) + CH N H. S CH H,C C-ÖH CI HC Br HC F [1] A
A bomb calorimeter, or constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy available from foods. Since the "bomb" itself can absorb energy, a separate experiment is needed to determine the heat capacity of the calorimeter. This is known as calibrating the calorimeter. In the laboratory a student burns a 0.461-g sample of 2-naphthylacetic acid (C12H1002) in a bomb calorimeter containing 1150. g water. The temperature increases from 24.70 °C to 27.20 °C. The specific heat capacity of water is 4.184 J g1 oC-1. The combustion enthalpy is -5779 kJ/mol 2-naphthylacetic acid. C12H1002(s) + 27/2 02(g) –→12 CO2(g) + 5 H20(1) A,H° -5779 kJ/mol Calculate the heat capacity of the calorimeter. heat capacity of calorimeter= orc J/C