Question

An aluminum cup contains 218 g of water at 21.5 C. A 412g sample of silver at an initial temperature of 81.6 C is placed in the water. A 40.2 g copper stirrer is used to stir the mixture until it reaches its final equilibrium temperature of 27.0 C. Calculate the mass of the aluminum cup.

I have posted this twice before and Ion capa told me there answers of 24.29 and 30.3 were incorrect. Third times the charm

Answer #1

Please like if this one is correct solution.

An aluminum cup contains 225 g of water and a 40-g copper
stirrer, all at 27°C. A 500-g sample of silver at an initial
temperature of 90°C is placed in the water. The stirrer is used to
stir the mixture gently until it reaches its final equilibrium
temperature of 32°C. Calculate the mass of the aluminum cup. g

An aluminum cup contains 225 g of water and a 40-g copper
stirrer, all at 27°C. A 402-g sample of silver at an initial
temperature of 86°C is placed in the water. The stirrer is used to
stir the mixture gently until it reaches its final equilibrium
temperature of 32°C. Calculate the mass of the aluminum cup.

An aluminum cup contains 225 g of water and a 40-g copper
stirrer, all at 27°C. A 480-g sample of silver at an initial
temperature of 90°C is placed in the water. The stirrer is used to
stir the mixture gently until it reaches its final equilibrium
temperature of 32°C. Calculate the mass of the aluminum cup.

An aluminum cup contains 225 g of water and a 40 g copper
stirrer, all at 27°C. A 470 g sample of silver at an initial
temperature of 89°C is placed in the water. The stirrer is used to
stir the mixture gently until it reaches its final equilibrium
temperature of 32°C. Calculate the mass of the aluminum cup.

An aluminum cup contains 225 g of water and a 40-g copper
stirrer, all at 27°C. A 441-g sample of silver at an initial
temperature of 85°C is placed in the water. The stirrer is used to
stir the mixture gently until it reaches its final equilibrium
temperature of 32°C. Calculate the mass of the aluminum cup.
My answer: 163.7 g
Your response is within 10% of the correct value. This may be due
to roundoff error, or you could...

A 299 g silver figure of a polar bear is dropped into the 211 g
aluminum cup of a well‑insulated calorimeter containing 259 g of
liquid water at 21.5∘C. The bear's initial temperature is 96.5∘C.
What is the final temperature of the water, cup, and bear when they
reach thermal equilibrium? The specific heats of silver, aluminum,
and liquid water are, respectively, 234 J/(kg·K), 910 J/(kg·K), and
4190 J/(kg·K).

You drop a 291-g silver figure of a polar bear into the 247-g
aluminum cup of a well-insulated calorimeter containing 261 g of
liquid water at 21.9°C. The bear\'s initial temperature is 97.9°C.
What is the final temperature of the water, cup, and bear when they
reach thermal equilibrium? The specific heats of silver, aluminum,
and liquid water are, respectively, 234 J/(kg·K), 910 J/(kg·K), and
4190 J/(kg·K).

You drop a 297-g silver figure of a polar bear into the 247-g
aluminum cup of a well-insulated calorimeter containing 259 g of
liquid water at 22.3°C. The bear\'s initial temperature is 98.5°C.
What is the final temperature of the water, cup, and bear when they
reach thermal equilibrium? The specific heats of silver, aluminum,
and liquid water are, respectively, 234 J/(kg·K), 910 J/(kg·K), and
4190 J/(kg·K).

You drop a 285-g silver figure of a polar bear into the 241-g
aluminum cup of a well-insulated calorimeter containing 263 g of
liquid water at 23.9°C. The bear\'s initial temperature is 95.9°C.
What is the final temperature of the water, cup, and bear when they
reach thermal equilibrium? The specific heats of silver, aluminum,
and liquid water are, respectively, 234 J/(kg·K), 910 J/(kg·K), and
4190 J/(kg·K).

You drop a 297-g silver figure of a polar bear into the 205-g
aluminum cup of a well-insulated calorimeter containing 277 g of
liquid water at 24.5°C. The bear\'s initial temperature is 95.5°C.
What is the final temperature of the water, cup, and bear when they
reach thermal equilibrium? The specific heats of silver, aluminum,
and liquid water are, respectively, 234 J/(kg·K), 910 J/(kg·K), and
4190 J/(kg·K).

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