Question #3a.

A piece of a metal having a mass of 150.0000 grams is heated to 99.3 9C. When the hot metal is submerged in 50.000 grams of water originally at 21.3 oC, the final temperature of the water and metal is 48.4 pC.

Determine the heat flow (q) of the water in Joules Record your answer to the correct number of significant figures in the box below. Do not write the units of your final answer. Show your numerical set-ups, including units in your set-ups, in Question #3b.

Question #3b.

Show the numerical set-up(s) for Question #3a. Be sure to include the units in your set-ups. Use the Math Equation Editor to write your set-up(s).

Question #3c.

a) Does the temperature of the water increase, decrease, or remain the same?

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b) Is the heat flow of the water positive, negative, or zero?

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c) Does the temperature of the metal increase, decrease, or remain the same?

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d) Is the heat flow of the metal positive, negative, or zero?

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Question #3d.

If the heat gained by the water is the same heat that is lost by the metal, what is the heat flow of the 150.000 gram sample of metal, in Joules? Record your answer in the box to the correct number of significant figures. Do not include the units of your answer.

Question #3e.

Determine the value of the specific heat of the 150.000 gram sample of metal, in J/g*oC. Record your answer, to the correct number of significant figures, in the box. Do not include the units of your answer.

Question #3f.

Show the numerical set-up(s) for Question #3e. Be sure to include the units in your set-ups. Use the Math Equation Editor to write your set-up(s).

Question #4a.

A student determines the mass of an empty flask. He then fills the flask completely with water and determines the mass of the water-filled flask. The student empties the flask, adds a piece of a metal to the flask, and determines the mass of the flask with metal. The student then adds water to the metal in the flask until the flask is completely filled. The student then determines the mass of the flask with metal and water. The data obtained by the student are given in the table below.

Mass of flask 175.36 g
Mass of flask filled with water 468.09 g
Mass of flask + metal 481.59 g
Mass of flask + metal + water 747.25 g
Density of water 0.997044 g/mL
Determine the density of the metal, in g/cm3. Record your answer, to the correct number of significant figures, in the box. Do not include the units of your final answer. Show your numerical set-up(s) in Question #4b.

Question #4b.

Show the numerical set-up(s) for Question #4a. Be sure to include the units in your set-ups. Use the Math Equation Editor to write your set-up(s).