42.9oC

A calorimeter contains 704 mL of water at 24.8°C. A 346 g piece of iron is heated in a Bunsen burner flame, then quickly submerged in the water in the calorimeter. After adding the hot iron, the temperature of the water in the calorimeter rises to a maximum of 41.8°C. Determine the temperature (in °C) to which the piece of iron was heated. Use the following values for your calculations. specific heat of water: 4.184 J/g°C density of water: 1.0 g/mL specific heat of iron: 0.449 J/g°C °C

When 6.54 grams of Zn is placed in 500.0 mL of 1.00 M CuSO4(aq) in a coffee cup calorimeter, it reacts completely to displace copper. The temperature of the solution rises from 20.0˚C to 30.4˚C. Assume the coffee cup itself gains no heat and that the solution has the same density (1.00 g/mL) and specific heat (4.184 J/g˚C) as pure water. (a) How much heat does the solution gain during this reaction? (in J)

A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 4.70 kg of water at 38.7 °C. During the reaction 55.6 kJ of heat flows out of the flask and into the bath. Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is -1 4.18 J∙g¯¹·K¯¹. Be sure your answer has the correct number of significant digits. 心。 °℃ x10 S

An 27.301g piece of metal is heated in a hot water bath at 98.5°C and then transferred to a coffee-cup calorimeter containing 50.0mL of water. The initial water temperature was 24.0°C and the final water temperature was 26.2°C. Determine the specific heat of the metal (Cmetal). Ccal = 21.0J/°C & Cwater = 4.184 J/g*°C. Report your answer to 3 sf and in J/g*°C. %3D

A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 5.30 kg of water at 26.9 °C. During the reaction 78.1 kJ of heat flows out of the flask and into the bath. -1 -1 Round your Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18 J∙g ¹·K answer to 3 significant digits. 1°C x10 X Ś ?

In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction.A student heats 62.45 grams of platinum to 99.18 °C and then drops it into a cup containing 84.71 grams of water at 23.23 °C. She measures the final temperature to be 25.02 °C.The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.66 J/°C.Assuming that no heat is lost to the surroundings calculate the specific heat of platinum.

A group of students place 15.41g of a metal into a test tube. They place the test tube into a beaker of boiling water until the temperature of the metal was 89.8°C. Then they quickly place the heated metal into a beaker of 10.47g of water with an initial temperature of 16.4°C. The temperature of the mixturecame to rest at 26.1°C. What is the specific heat of the metal used? (CH2O = 4.18 J/g°C)

A 135.0-g piece of iron is heated to 225 ℃ in an oven.  It is then dropped into a calorimeter containing 250.0-mL of glycerol (d = 1.261 g/mL) at 23.5 ℃.  The temperature of glycerol rises to a maximum value of 44.7 ℃.  Determine the specific heat of glycerol.