A 147.1 g piece of copper (specific heat 0.380 J/g･ °C) is heated and then placed into 400.0 g of water initially at 20.7 °C. The water increases in temperature to a final temperature of 22.2 °C. What is the initial temperature (in °C) of the copper? (The specific heat of water is 4.184 J/g･ °C).

Ices] A 21.0 g sample of pure iron at 85 °C is dropped into 66 g of water at 20. °C. What is the final temperature of the water-iron mixture? The specific heat of water is 4.184 J/g °C. The specific heat of iron is 0.45 J/g °C. Final temperature °C

How much heat (in kJ) will be absorbed by a 75.9 g piece of aluminum (specific heat = 0.930 J/g･°C) as it changes temperature from 23.0°C to 67.0°C?

The specific heat of toluene (C7H8), is 1.13 J/g•K. How many kJ of heat are necessary to raise the temperature of 65.3 g of toluene from 19.3 °C to 30.4 °C?

An unknown hot metal at 107.03°C with a mass of 48.67g was mixed with 37.99g of water at an initial temperature of 13.65°C.  A final temperature (for both water and metal) of 26.53°C was reached. In units of J/(g°C), what is the specific heat of the unknown metal?

A hot lump of 47.9 g of copper at an initial temperature of 99.7 °C is placed in 50.0 mL H₂O initially at 25.0 °C and allowed to reach thermal equilibrium. What is the final temperature of the copper and water, given that the specific heat of copper is 0.385 J/(g-°C)? Assume no heat is lost to surroundings. Tiinal = °℃

A 325-g piece of gold at 427°C is dropped into 200.0 mL of water at 22.0°C. the specific heat of gold is 0.131 J/g°C. calculate the final temperature of the mixture. (assume no heat loss to the surroundings)

A 5.0 g sample of water starting at 59.4°C loses 439 J of energy in the form of heat. What is the final temperature of the water after this heat loss? The specific heat for water is 4.18 J/(g.°C). Temperature = °C

A 137.9 g piece of copper (specific heat 0.38 J/g･°C) is heated and then placed into 400.0 g of water initially at 20.7°C. The water increases in temperature to 22.2°C. What is the initial temperature (in °C) of the copper? (The specific heat of water is 4.18 J/g･°C).

A 109.5 g piece of copper (specific heat 0.38 J/g･°C) is heated and then placed into 400.0 g of water initially at 20.7°C. The water increases in temperature to 22.2°C. What is the initial temperature of the copper? (The specific heat of water is 4.18 J/g･°C).