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.
NW113AACE04-21 3. a hunk of metal-like substance was found in an archeological site. In an attempt to identify it, the metal was heated and placed in a calorimeter containing water and determined the specific heat of the metal. If the specific heat of the metal is 0.448 J/g °C, what is the approximate molar mass (atomic mass) and likely identity of the metal? (Hint: compare the molar mass (atomic mass) of metal that of metals in periodic table)
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?
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
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 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
We place a metal rod weighing 5.00 g with a specific heat capacity of 0.320 J/K/g in 20.4 mL of water. The specific heat capacity of water is 4.184 J/K/g and we make the approximation that its density is exactly 1.000 g/mL. The water has an initial temperature of 20.0 oC and the metal rod has an initial temperature of 88.0 oC. What is the final temperature (in oC) of the water and metal rod?
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