URGENT 4 pts Question 6 A 600 g piece of metal was heated to 100 °C...
A piece of metal weighing 60.922 g was heated to 100.0°C and then put into 100.0 mL of water (initially at 23.7°C). The metal and water were allowed to come to equilibrium temperature, determined to be 27.8°C. A) What is the specific heat of the metal? [ Select ] B) Was the reaction endothermic or exothermic? For the water... [ Select ] For the metal... [ Select ] C) What is the identity of the metal? [ Select ] Aluminum...
Only question 4 Pliz!! ULT Appron male equul number of points de 3. A 32.520 g piece of unknown metal was heated in a hot water bath at 99.80°C. The hot metal was then transferred to a coffee-cup calorimeter containing 100.0 mL of water. Time-Temperature data was collected and plotted. From the plot, the initial and final tem- peratures for the water were determined to be T = 23.76°C and T, = 26.18°C. a. Calculate qcal and water (Assume Cal...
(18) 7. A 28.4 g piece of metal of unknown composition is heated to 534.4 °C and plunged into a styrofoam coffee cup containing 43.5 mL of water at 28.6 °C. Ten minutes later the system reaches thermal equilibrium at 38.4 °C. Assuming that no heat is lost to the cup or the surroundings. determine the specific heat capacity of the unknown metal
4. You placed 43.1 g of an unknown metal at 100 °C into a coffee cup calorimeter that contained 50.0 g of water that was initially at 22.0 °C. The equilibrium temperature of mixing (T0) was determined to be 23.7 °C. The calorimeter constant was known to be 51.5 J/°C. Specific HeatH2O = 4.184 J/g·°C a. What is the total amount of heat (J) lost by the metal? NG 1.5 b. What was the specific heat (J/g·°C) of the metal?...
Question 22 (3 points) A 42.1 g piece of metal was heated to 95.4°C and then dropped into a beaker containing 42.0 g of water at 23.00°C. When the water and metal come to thermal equilibrium, the temperature is 32.10°C. What is the specific heat capacity of the metal? The specific heat capacity of the water is 4.184 J/(g-K) 0.387 J/(g-K) 0.600 J/(g-K) 0.488 J/(g-K) 0.720 J/(g-K) 0.980 J/(g-K)
o prase Ul Water to 2. What is the heat, q, required to melt 10 grams of ice in a) Joules b) calories? 122.3 °C). The goC. Assuming -4.18 /(8°C) 3. A piece of metal weighing 49.047 g was heated to 100.0 °C and then put it into 100.0 m water initially at 22.3 °C). The metal and water were allowed to come to an equilibu temperature, determined to be 27.8 °C. Assuming no heat lost to the environment, calculat...
3. A 32.520 g piece of unknown metal was heated in a hot water bath at 99.80°C. The hot metal was then transferred to a coffee-cup calorimeter containing 100.0 mL of water. Time-Temperature data was collected and plotted. From the plot, the initial and final tem- peratures for the water were determined to be T 23.76°C and T 26.18°C. and qse (Assume C 21.0 J°C.) a. Calculate cal b. Calculate qnetal Calculate cmetal d. Calculate the molar mass for the...
5. A 23.9 g piece of metal heated to 97.8 °C is placed in 52.4 g water at 21.9 °C. After the metal is added, the temperature of the water rises to 29.9 °C. Calculate the specific heat of the metal. Express your answer in the units of cal/g°C.
A 42.1 g piece of metal was heated to 95.4°C and then dropped into a beaker containing 42.0 g of water at 23.00°C. When the water and metal come to thermal equilibrium, the temperature is 32.10°C. What is the specific heat capacity of the metal? The specific heat capacity of the water is 4.184 J/(g-K). 0.387 J/(g-K) 0.600 J/(g-K) 0.488 J/(g-K) 0.720 J/(g-K) 0.980 J/(g-K) Previous Page Next Page Page 22 of 24 Submit Quiz 0 of 24 questions saved
An irregular lump of an unknown metal has a measured density of 3.84 g/mL. The metal is heated to a temperature of 161 °C and placed in a graduated cylinder filled with 25.0 mL of water at 25.0 °C. After the system has reached thermal equilibrium, the volume in the cylinder is read at 33.7 mL, and the temperature is recorded as 37.4 °C. What is the specific heat of the unknown metal sample? Assume no heat is lost to...