A 239.0 g piece of lead is heated to 85.0oC and then dropped into a calorimeter containing 645.0 g of water that initally is at 24.0oC. Neglecting the heat capacity of the container, find the final equilibrium temperature (in oC) of the lead and water.
A: 7.89 | B: 1.05×101 | C: 1.40×101 | D: 1.86×101 | E: 2.47×101 | F: 3.28×101 | G: 4.37×101 | H: 5.81×10 |
A 239.0 g piece of lead is heated to 85.0oC and then dropped into a calorimeter...
A 229.0 g piece of lead is heated to 84.0oC and then dropped into a calorimeter containing 526.0 g of water that initally is at 15.0oC. Neglecting the heat capacity of the container, find the final equilibrium temperature (in oC) of the lead and water.
> PROBLEM-SOLVING CLASS ACTIVITY 3 A 26.5 g piece of lead, heated to 90.0°C, is dropped into a coffee-cup calorimeter containing 100,0 mL of water at 22.5°C. The final temperature of the metal and the water is 23.2°C. What is the specific heat of lead? The density of water is 1.00 g/mL.
1 A173.0g lead ball at 155°C is dropped into a calorimeter cup containing 210 g of water at 16.0°c. After equilibrium is reached, the temperature of water is increased to 18.2°C. What is the heat capacity of calorimeter? Assume that calorimeter and water are initially at the same temperature. (Specific heat of water is 4186 J/kg. C and specific heat of lead is 128 J/kg.C) 2. An unknown metal sample of 54 g at 108°C is dropped into a calorimeter...
9. A 48.8 g piece of an unknown metal was heated to 99.8°C, then dropped into a coffee cup calorimeter containing 40.0 g of water at 26.3°C The temperature of the water increased to 30.2°C. How much heat flowed into the water? What is the specific heat of the unknown metal?
A 92.5 g piece of aluminum (which has a molar heat capacity of 24.03]/°C-mol) is heated to 624°C and dropped into a calorimeter containing water (specific heat capacity of water is 4.18 J/g°C) initially at 19.2°C. The final temperature of the water is 135.2°C. Ignoring significant figures, calculate the mass of water in the calorimeter.
A 29.3 g piece of metal is heated to 97 degree C and dropped into a calorimeter containing 50.0 g of water (specific heat capacity of water is 4.18 J/g degree C) initially at 22.9 degree C. The empty calorimeter has a heat capacity of 125 J/K. the final temperature of the water is 25.96 degree C. Ignoring significant figures., calculate the specific heat of the metal. A) 0.481 J/gK. B) 0.361 J/gK C) 0.120 J/gK D) 0.300 J/gK E)...
An 920-g piece of iron at 100* C is dropped into a calorimeter of negligible heat capacity containing 50g of ice at 0* C and 92 g of water, also at 0* C. What is the final temperture of the system? The specific heat of iron is 448 J/kg K and Latent heat of fusion of water is 33.5 x 10^4 J/kg Please show all necessary equations and steps. thank you!
2. DANS A piece of unknown metal weighs 100.0 g. It is heated to 98.0°C before it was dropped into a calorimeter containing 50.0 g of water at 22.0°C. The final temperature was observed to be 26.4'C. Calculate the specific heat capacity of the metal. Type your answer
both questions please 6. A 89.2 g piece of aluminum (which has a molar heat capacity of 24.031/°C-mol) is heated to 624°C and dropped into a calorimeter containing water (specific heat capacity of water is 4.18J/gºC) initially at 19.2°C. The final temperature of the water is 135.2°C. Ignoring significant figures, calculate the mass of water in the calorimeter. 7. A single pulse of a laser yields an average of 5.00 x 101 photons with = 633 nm. If melting ice...
A hot metal weighing 65.0 g was heated to 125 oC and dropped into 75.0 g of water kept at a room temperature of 20.6 oC in a calorimeter. Within a couple of minutes, water’s temperature increased to 26.8 oC and stayed constant at that temperature. If the heat capacity or calorimetry constant is 11.5 J/oC, find the specific heat capacity of the metal.