The molar heat capacity of aluminum is 24.2
J/mol-°C.
If the molar mass of aluminum is 27g/mol
and
q = nCp ΔT, then….
How much energy is needed to raise the temperature of
a 8.50 x 102 g block of aluminum from
22.8°C to 94.6°C?
The molar heat capacity of aluminum is 24.2 J/mol-°C. If the molar mass of aluminum is...
b. A 92.5 g piece of aluminum (which has a molar heat capacity of 24.03 J/°C-mol) is heated to 621 and dropped into a calorimeter containing water (specific heat capacity of water is 1.10 MB 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.
water has a molar heat capacity of 75.38 J/(mol
12. Water has a molar heat capacity of 75.38 J/(mol x °C) and its vaporization enthalpy at 100°C is 40.7 kJ/mol. How much energy is needed to convert 36 g liquid H20 at 70.0°C to steam at 100°C? A) 85.9 kJ B) 126 kJ C) 77.6 kJ D) 81.4 kJ E) 45.2 kJ
The molar heat capacity of silver is 25.35 J/mol⋅∘CJ/mol. How much energy would it take to raise the temperature of 8.20 g of silver by 14.1 C? Express your answer with the appropriate units. What is the specific heat of silver? Express your answer with the appropriate units.
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) What is the molar heat capacity of liquid water? J/mol oC (b) What is the heat capacity of 7.60 mol of liquid water? J/ oC (c) How many kJ of heat are needed to raise the temperature of 3.02 kg of water from 36.4 oC to 68.3 oC? kJ
The specific heat capacity of silver is 0.24 J/°C .g. (a) Calculate the energy required to raise the temperature of 140.0 g Ag from 273 K to 305 K. (b) Calculate the energy required to raise the temperature of 1.0 mol Ag by 1.0°C (called the molar heat capacity of silver). O J/mol°C (c) It takes 1.35 kJ of energy to heat a sample of pure silver from 12.0°C to 15.3°C. Calculate the mass of the sample of silver. 9
Part B The molar heat capacity of silver is 25.35 J/mol temperature of 12.0 g of silver by 15.1 °C? °C. How much energy would it take to raise the Express your answer with the appropriate units. View Available Hint(s) ? HA Units Value Submit Part C What is the specific heat of silver? Express your answer with the appropriate units. View Available Hint(s) ? HA Value Units Submit
A 17.0 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 25.3°C. Ignoring significant figures, calculate the mass of water in the calorimeter.
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...
The specific heat capacity of silver is 0.24 J/g ·°C a. What additional piece of information is needed to calculate the molar heat capacity of silver (6 points)? b. Calculate the energy required to raise the temperature of 245.0 g Ag from 273 K to 373 K? (6 points) c. It takes 65 kJ of energy to raise a sample of silver from 298 K to 363 K. Calculate the mass of silver in this sample. (6 points)