When a piece of copper, at a temperature of 256.0 degrees Celsius, is added to 255...

When a piece of copper, at a temperature of 256.0 degrees Celsius, is added to 255 grams of water at a temperature of 20.0 degrees celsius, the temperature of the resulting mixture is 24.0 degrees celsius. If the specific heat of copper is 0.385 J/g x degrees celsius, what was the mass of the copper? The specific heat of water is 4.184 J/g x degrees celsius.

Expert Solution

heat lose of copper = heat gain of water

mcT = mcT

m*0.385*(256-24) = 255*4.184*(24-20)

m = 47.78g

mass of copper = 47.78g >>>>answer

queen_honey_blossom answered 2 years ago

A 6.88 g piece of copper is heated from 20.0 degrees Celsius to 125 degrees Celsius...

A 6.88 g piece of copper is heated from 20.0 degrees Celsius to 125 degrees Celsius and then submerged in 45.0 mL of water initially at 18.3 degrees Celsius. What is the final temperature of the water?

A 39.7g piece of copper rod is heated to 98 degrees celsius and then placed in...

A 39.7g piece of copper rod is heated to 98 degrees celsius and then placed in an insulated container containing 50.7 grams of water at 18.3 degrees celsius. Assuming no loss of water and using the following parameters, what is the final temperature of the system? Assume that the container is always at the same temperature as that of the water. Ccopper 0.387(J/gxK) CH2O 4.184(J/gxK) Cvessel 12.30 (J/K)

Consider copper from 0 degrees Celsius to 1000 degrees Celsius. The density for copper at 0...

Consider copper from 0 degrees Celsius to 1000 degrees Celsius. The density for copper at 0 degrees is 8.92 g/cm^3. Assume the vacancy formation energy is 0.91 eV/atom and that the volume coefficient of thermal expansion is 3 times the the linear coefficient of thermal expansion. 1) Determine the density change between these two temperatures due to the change in the number of vacancies. Thermal expansion coefficient of copper is 9.3 (10-6 in/(in R))*) OR 16.6 (10-6 m/(m K))

50.0 grams of gold at a temperature of 85 degrees Celsius is added to a Styrofoam...

50.0 grams of gold at a temperature of 85 degrees Celsius is added to a Styrofoam cup calorimeter containing 150 grams of water. The cup of water is initially at a temperature of 25 degrees Celsius and the final equilibrium temperature of the water and gold mixture is 29 degrees Celsius. Calculate the specific heat of the gold. The specific heat of water is 4.18 J/g degrees Celsius. Please show the work too! I would greatly appreciate it!

Write a program that displays a temperature conversion table for degrees Celsius and degrees Fahrenheit. The...

Write a program that displays a temperature conversion table for degrees Celsius and degrees Fahrenheit. The table should include rows for all temperatures between 0 and 100 degrees Celsius that are multiples of 10 degrees Celsius. Include appropriate headings on your columns. The formula for converting between degrees Celsius and degrees Fahrenheit can be found on the internet. Python 3

On a particular summer day, the temperature is 30 degrees Celsius and the relative humidity is...

On a particular summer day, the temperature is 30 degrees Celsius and the relative humidity is 80% (which means that the partial pressure of water vapor in the ambient air is 80% of the equilibrium vapor pressure of water). A sample of this air is placed in a 1 Liter flask which is then closed and cooled to 5 degrees Celsius. What is the mass in grams of water that still exists as vapor in the flask? How much liquid...

Calculate the final temperature, in degrees Celsius, ∘C, for each of the following with n and...

Calculate the final temperature, in degrees Celsius, ∘C, for each of the following with n and V constant. A sample of air at 35 ∘C and 780 mmHg is cooled to give a pressure of 640 mmHg . Express your answer to two significant figures and include the appropriate units.

The indoor temperature of an oven can go up to 250 degrees Celsius. There is a...

The indoor temperature of an oven can go up to 250 degrees Celsius. There is a 2 mm thick sheet metal material inside and outside of the oven wall. There is a 10 mm insulation material between the oven wall. It is desirable that this temperature should not exceed 30 degrees Celsius in order not to damage the outside of the oven by hand. Find the amount of heat (W) discharged from the furnace unit area and unit time and...

1) A 17.27 gram sample of aluminum initially at 92 degrees Celsius is added to a...

1) A 17.27 gram sample of aluminum initially at 92 degrees Celsius is added to a container containing water. The final temperature of the metal is 25.1 degrees Celsius. What is the total amount of energy in Joules added to the water? What was the energy lost by the metal? 2) Mixing 25.0 mL of 1.2 M HCl and 25.0 mL of 1.1 M NaOH were mixed. The temperature of the initial solution was 22.4 degrees Celsius. Assuming a Heat...

A copper disk at 850 degrees celsius rotating about its axis with an angular speed of...

A copper disk at 850 degrees celsius rotating about its axis with an angular speed of 25 rad/s in the outer space. As the disk radiates infrared light, its temperature falls to 20 degrees celsius. No external torque acts on the disk. Does the angular speed of the disk change as it cools?

Question