Answer the following thermochemistry problems. You must show the numeric values in their proper place in the formula used to

Question

Answer the following thermochemistry problems. You must show the numeric values in their proper
place in the formula used to arrive at an answer. In addition, you must pay attention to sig. figs. and
units on your answer. Correct answers with no work shown will receive half-credit.
a. The specific heat of an unknown metal was determined by heating 100.00g of the metal
from 20 °C to 130.86 °C. The resulting energy gained by the metal was 10,000.00J.
What is the specific heat? What metal is it (4pt)?
b. 26.50g of aluminum is heated to an initial temperature of 100 °C and placed into 200.00g of room
temperature water at 20°C. The specific heat of water is 4.182J/g °C and the specific heat of
aluminum is 0.902 J/g °C. What is the final temperature of the metal and water(6pt)?

Kunduz · Accepted Answer

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