# Chemistry

A 5.00 g sample of aluminum pellets (specific heat capacity = 0.89 J/°C·g) and a 10.00 g sample of iron pellets (specific heat capacity = 0.45 J/°C·g) are heated to 100.0°C. The mixture of hot iron and aluminum is then dropped into 94.9 g of water at 24.2°C. Calculate the final temperature of the metal and water mixture, assuming no heat loss to the surroundings.

1. 👍 0
2. 👎 0
3. 👁 696
1. sum of heats gained is zero.
5*.89(Tf-100)+10*.45(Tf-100)+94.0(4.18)(Tf-24.2)=0
solve for Tf

1. 👍 0
2. 👎 0
👨‍🏫
bobpursley
2. Okay got it thank you!

1. 👍 0
2. 👎 0

## Similar Questions

1. ### Chemistry

A hot lump of 25.6 g of aluminum at an initial temperature of 57.4 °C is placed in 50.0 mL of H2O initially at 25.0 °C and allowed to reach thermal equilibrium. What is the final temperature of the aluminum and water given that

2. ### Chemistry

A 54.7-g sample of aluminum at 95.0°C is dropped into 35.0 g of water at 40.0°C. What is the final temperature of the mixture? (specific heat capacity of aluminum = 0.89 J/g°C; specific heat capacity of water = 4.184 J/g°C)

3. ### Chem

A 28.4 g sample of aluminum is heated to 39.4 C, then is placed in a calorimeter containing 50.0 g of water. Temperature of water increases from 21.00 C to 23.00 C. What is the specific heat of aluminum in cal/gC? Is the answer

4. ### chemistry

A piece of copper of mass 40g at 200°C is placed in a copper calorimeter of mass 60g containing 50g of water at 10°C. Ignoring heat losses, what will be the final steady temperature after stirring. (Specific heat capacity of

1. ### Chemistry

Calculate the amount of heat required to raise the temperature of a 65-g sample of water from 32∘C to 65∘C. (The specific heat capacity of copper is 4.184 J/g∘C.) Express your answer in Joules.

2. ### Chemistry

A 5.00-g sample of aluminum pellets (specific heat capacity = 0.89 J/°C · g) and a 10.00-g sample of iron pellets (specific heat capacity = 0.45 J/°C · g) are heated to 100.0°C. The mixture of hot iron and aluminum is then

3. ### chemistry

A 18.3 g piece of aluminum (which has a molar heat capacity of 24.03 J/oC mol) is heated to 82.4oC and dropped into a calorimeter containing water (specific heat capacity of water is 4.18 J/goC) initially at 22.3oC. The final

4. ### Chem

742.5 J of energy is used to heat an unknown mass of aluminum from 10° C to 65.0° C. The specific heat capacity of aluminum = 0.90 J/(g·°C). What is the mass of the aluminum?

1. ### Physics

I'm understanding most of this physics, but here is one last question I would appreciate help on. Thank you! Okay, so the question involves a figure. A link to the question and the picture with it is below can be found by googling

2. ### Physicis

Aluminum has specific heat capacity of 900J/kg what does this mean

3. ### science

what is the specific heat of aluminum if temperature of a 28.4g sample of aluminum is increased by 8.1 c° when 207J og heat is added

4. ### science

Which of the following substances has the greater heat capacity? a. 0.02 g of aluminum b. 2.00 g of aluminum c. 20.0 g of aluminum d. 200 g of aluminum*** please correct me if im wrong