A 32.5 g piece of aluminum (which has a molar heat capacity of 24.03 J/°C·mol) is heated to 82.4°C and dropped into a calorimeter containing water (specific heat capacity of water is 4.18 J/g°C) initially at 22.3°C. The final temperature of the water is 24.2°C. Ignoring significant figures, calculate the mass of water in the calorimeter.

A piece of chromium metal with a mass of 24.50 g is heated in boiling water to 98.3 °C and then dropped into a coffee-cup calorimeter containing 82.3 g of water at 23.4 °C. When thermal equilibrium is reached, the final temperature is 25.7 °C. Calculate the specific heat capacity of chromium. (The specific heat capacity of liquid water is 4.184 J/g ⋅ K.)

An 80.0 g sample of metal, initially at 96.0 °C, is placed into 150.0 g of water initially at 26.0 °C in a calorimeter. The final temperature of the water is 28.1 °C. What is the identity of the metal? (The specific heat of water is 4.18 J/g °C.) Metal Aluminum Copper Iron Magnesium Silver Tin Titanium Specific Heat Capacity J/(g•°C) 0.90 0.38 0.45 1.00 0.23 0.32 0.52 A) Fe B) Sn C) Ag D) Cu

The temperature of a sample of aluminum increased by 23.4 °C when 261 J of heat was applied. What is the mass of the sample? m = مه g Substance Specific heat J/(g · °C) . lead 0.128 silver 0.235 copper 0.385 iron 0.449 aluminum 0.903

A 158 g sample of gold at some temperature was added to 28.7 g of water. The initial water temperature was 18.4 °C, and the final temperature was 23.2 °C. If the specific heat capacity of gold is 0.128 J/g · °C, what was the initial temperature of the gold sample? The specific heat capacity of water is 4.184 J/g ⋅ K.

when 50.0 mL of 0.200 M NaOH is mixed with 50 mL of 0.200 M HCl in a coffee cup calorimeter, the temperature increases from 23.5 degrees C to 26.5 degrees C. Assuming that the density of the resulting solution is 1.00 g/mL and the specific heat capacity of the solution is 4.18 J/g degrees C, what is qrxn?

A student conducted several calorimetry investigations. In the first of the investigations, the student heats a 21.0 g price of metal that is know to have a specific heat capacity of 0.449 J/g°C to a temperature of 80°C. Then a piece of metal is added to the beaker of water (70.0 grams at 20.00°C). The specific heat capacity of water is 4.187 J/g°C. If the student repeated the investigation with 50.0 g of water instead what would be different.

A 120.0 g sample of a metal at 75.0 °C is added to 150.0 g H20 at 15.0 °C. The temperature of the water rises to 18.3°C. Calculate the specific heat capacity of the metal, assuming that all the heat lost by the metal is gained by the water. Specific heat capacity for water is 4.18 J / °C g.

A chemist carefully measures the amount of heat needed to raise the temperature of a 639.0 g sample of C,H,N from -8.7 °C to 6.7 °C. The experiment shows that 2.60 × 10* J of heat are needed. What can the chemist report for the molar heat capacity of C,H,N? Round your answer to 3 significant digits. - 1 ·K J• mol х10