Question

An unknown substance has a mass of 0.125 kg and an initial temperature of 92.5°C. The...

An unknown substance has a mass of 0.125 kg and an initial temperature of 92.5°C. The substance is then dropped into a calorimeter made of aluminum containing 0.285 kg of water initially at 27.0°C. The mass of the aluminum container is 0.150 kg, and the temperature of the calorimeter increases to a final equilibrium temperature of 32.0°C. Assuming no thermal energy is transferred to the environment, calculate the specific heat of the unknown substance.

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
An unknown substance has a mass of 0.125 kg and an initial temperature of 79.8°C. The...
An unknown substance has a mass of 0.125 kg and an initial temperature of 79.8°C. The substance is then dropped into a calorimeter made of aluminum containing 0.285 kg of water initially at 21.0°C. The mass of the aluminum container is 0.150 kg, and the temperature of the calorimeter increases to a final equilibrium temperature of 32.0°C. Assuming no thermal energy is transferred to the environment, calculate the specific heat of the unknown substance.
A teaching assistant performs an experiment using an aluminum container, with a mass of 0.150 kg,...
A teaching assistant performs an experiment using an aluminum container, with a mass of 0.150 kg, that contains 0.285 kg of water, all initially at 26.0°C. The teaching assistant then adds a sample of an unknown substance to the water. The sample has a mass of 1.3 kg and an initial temperature of 90.0°C. After waiting until the entire system reaches thermal equilibrium, the teaching assistant measures a final temperature of 32.0°C. What is the specific heat (in J/(kg ·...
You are given an unknown substance with mass of 400.0 g. The unknown substance is heated...
You are given an unknown substance with mass of 400.0 g. The unknown substance is heated to a temperature of 97.0°C, and then dropped into a calorimeter that is at an initial temperature of 18.0°C. The calorimeter is composed of a 140.0 g aluminum inner cup and 10.0 g stirrer (also aluminum). The mass of the inner cup plus water is 340.0 g. When equilibrium is established, the temperature is 22.0°C. There are no phase changes. 1. What is the...
I place an ice cube with a mass of 0.223 kg and a temperature of −35°C...
I place an ice cube with a mass of 0.223 kg and a temperature of −35°C is placed into an insulated aluminum container with a mass of 0.553 kg containing 0.452 kg of water. The water and the container are initially in thermal equilibrium at a temperature of 27°C. Assuming that no heat enters or leaves the system, what will the final temperature of the system be when it reaches equilibrium, and how much ice will be in the container...
An unknown metal of mass 0.280 kg is heated to 160.0°C and dropped in an aluminum...
An unknown metal of mass 0.280 kg is heated to 160.0°C and dropped in an aluminum calorimeter of mass 0.250 kg that contains 0.170 kg of water at 30°C. The calorimeter, water, and unknown metal have a final temperature of 46.0°C. Find the specific heat of the unknown metal. Hint: you need the specific heat of water and aluminum. Use units of [J/(kg.K)] and the values in your book for the specific heat.
A piece of unknown material of mass 0.15 kg is heated to 110°C without melting and...
A piece of unknown material of mass 0.15 kg is heated to 110°C without melting and then placed in a calorimeter containing 0.76 kg of water initially at 14.5°C. The system reaches an equilibrium temperature of 20.8°C a)  What is the specific heat of the unknown material, in units of J/(kg⋅°C)? The specific heat of water is 4.186 × 103 J/(kg⋅°C).
A 60.0 g aluminum block, initially at 55.00 °C, is submerged into an unknown mass of...
A 60.0 g aluminum block, initially at 55.00 °C, is submerged into an unknown mass of water at 293.15 K in an insulated container. The final temperature of the mixture upon reaching thermal equilibrium is 25.00 °C. What is the approximate mass of the water? The specific heat of water is 4.18 J/g . °C. The specific heat of aluminum is 0.897 J/g . °C.
A 25 g gold nugget with an initial temperature of 60 °C is dropped into an...
A 25 g gold nugget with an initial temperature of 60 °C is dropped into an insulated cup containing 100 ml of water initially at a temperature of 5°C. What is the final temperature after thermal equilibrium is established? Table 3.4 Specific Heat Capacities of Some Common Substances Substance Specific Heat Capacity (J/g °C) Lead 0.128 Gold 0.128 Silver 0.235 Copper 0.385 Iron 0.449 Aluminum 0.903 Ethanol 2.42 Water 4.184
A mass of 43.0 g of an unknown solid initially at 130.0 ∘C is added to...
A mass of 43.0 g of an unknown solid initially at 130.0 ∘C is added to an ideal constant pressure calorimeter containing 100.0 g of water (Cs,water=4.184J/(g⋅∘C)) initially at 20.0 ∘C. After the mixture reaches thermal equilibrium, the final temperature is recorded to be 36.49 ∘C. What is the specific heat capacity of the unknown solid? Express your answer to three significant figures.
A sample of copper with a mass of 1.80 kg, initially at a temperature of 150.0°C,...
A sample of copper with a mass of 1.80 kg, initially at a temperature of 150.0°C, is in a well-insulated container. Water at a temperature of 27.0°C is added to the container, and the entire interior of the container is allowed to come to thermal equilibrium, where it reaches a final temperature of 70.0°C. What mass of water (in kg) was added? Assume any water turned to steam subsequently recondenses.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT