4. Determine the final temperature of water if 9.2 kJ of heat is added to 250 mL of 17°C water (thespecific heat capacity of water is 4.184 J/g°C).

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Answered: 4. Determine the final temperature of…

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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33.79 g of a solid is heated to 100.°C and added to 50.0 g of water in a coffee cup calorimeter and the contents are allowed to sit until they finally have the same temperature. The water temperature changes from 29.76 °C to 38.3 °C and the specific heat capacity of water is 4.184J/g °C. What is the specific heat capacity (in J/g°C) of the solid? O 1.73 O 1.17 O 0.857 O 0.579
6. Determine the mass of a sample of water in a coffee cup calorimeter if the final temperature is 65.7 °C, the initial temperature is 22.3 °C, and 27.6 kJ of heat is added to the water (specific heat of water is 4.184 J/g•K).
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
When 6.54 grams of Zn is placed in 500.0 mL of 1.00 M CuSO4(aq) in a coffee cup calorimeter, it reacts completely to displace copper. The temperature of the solution rises from 20.0˚C to 30.4˚C. Assume the coffee cup itself gains no heat and that the solution has the same density (1.00 g/mL) and specific heat (4.184 J/g˚C) as pure water. (a) How much heat does the solution gain during this reaction? (in J)
4. The combustion of toluene (C7H8) has a heat of reaction of -3.91 x 10³ kJ/mol. When 1.55g toluene undergoes combustion in a bomb calorimeter, the temperature rises from 23.12°C to 37.57°C. Find the heat capacity of the bomb calorimeter.
A 322 gram sample of metal at 78.4°C with a specific heat of 0.138 J/g°C is added to 264 grams of water at 24.2°C. Calculate the final temperature reached the metal-water mixture.
In a coffee cup calorimeter with a heat capacity of 21.5 J/ºC, 225 mL of 0.20 M KOH at 22.3 ºC neutralizes 225 mL of 0.20 M HCl at 22.3 ºC. After the reaction occurs, the temperature of the resulting mixture is 29.2 ºC. The density of the final solution is 1.00 g/mL and the specific heat is 4.18 J/g°C. Calculate the Heat of neutralization of KOH.
The specific heat of aluminum is 0.897 J/g·°C and the specific heat of water is 4.18 J/g·°C. If a 3.00 g piece of aluminum at 300.0°C is immersed in 10.0 mL of water at 30.0°C, predict the final temperature of the mixture.
When a sample of titanium was supplied 1.00 kJ of energy, the temperature rose 103.5 °C. If the specific heat of titanium is 0.523 J/g · °C, what is the mass of the titanium sample?

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4. Determine the final temperature of water if 9.2 kJ of heat is added to 250 mL of 17°C water (the specific heat capacity of water is 4.184 J/g°C).