**Experiment Description:**A hot 122.8 g lump of an unknown substance initially at 154.8 °C is placed in 35.0 mL of water initially at 25.0 °C, and the system is allowed to reach thermal equilibrium. The final temperature of the system is 56.9 °C.**Objective:**Using this information and the specific heat values for several metals in the table, identify the unknown substance. Assume no heat is lost to the surroundings.**Options:**- ○ graphite- ○ zinc- ○ aluminum- ○ titanium- ○ tungsten- ○ rhodium**Table of Specific Heat Values:**| Substance | Specific heat (J/(g·°C)) ||------------|--------------------------|| aluminum | 0.897 || graphite | 0.709 || rhodium | 0.243 || titanium | 0.523 || tungsten | 0.132 || zinc | 0.388 || water | 4.184 |**Instructions:**Analyze the problem using the principle of heat transfer (Q = mcΔT) to determine the identity of the unknown substance based on the provided specific heat values.

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A hot 122.8 g lump of an unknown substance initially at 154.8 °C is placed in 35.0 mL of water initially at 25.0 °C and the system is allowed to reach thermal equilibrium. The final temperature of the system is 56.9 °C. Using this information and the specific heat values for several metals in the table, identify the unknown substance. Assume no heat is lost to the surroundings. graphite zinc aluminum titanium tungsten rhodium Substance Specific heat (J/(g•°C)) aluminum 0.897 graphite 0.709 rhodium 0.243 titanium 0.523 0.132 0.388 4.184 tungsten zinc water

A hot 122.8 g lump of an unknown substance initially at 154.8 °C is placed in 35.0 mL of water initially at 25.0 °C and the system is allowed to reach thermal equilibrium. The final temperature of the system is 56.9 °C. Using this information and the specific heat values for several metals in the table, identify the unknown substance. Assume no heat is lost to the surroundings. graphite zinc aluminum titanium tungsten rhodium Substance Specific heat (J/(g•°C)) aluminum 0.897 graphite 0.709 rhodium 0.243 titanium 0.523 0.132 0.388 4.184 tungsten zinc water

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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