Question 4 of 15 Page 4 of 15 Question 4 (6 points) A piece of copper...
Question 4 4 pts A piece of metal with a specific heat of 1.29 J/gºC is heated to 126.6°C and then placed in 133.868 g of water which is at a temperature of 10.9 °C. After a minute, the temperature of the water has stopped changing and is now 45.6°C. Assuming that there are no heat losses to the container or surroundings, what is the mass of the piece of metal in grams? Assume that water has a specific heat...
Question 14 5 pts A copper cube with a mass of 25.0 g is initially at 25.0 °C. The copper cube is heated to 62.0°C. The amount of heat absorbed by the copper cube is 360 J. What is the specific heat of copper? 0.903 J/g °C 1.832 J/gºC 3.330 J/gºC 0.551 J/gºc 0.389 J/gº
correct sig fig number please! Question 49 (1 point) A student runs the reaction below starting with 53 grams of ammonia (NH3). How many grams of water should form? 4 NH3 + 5 O2 - 4 NO + 6 H20 NH3 molar mass = 17.04 g/mol H20 molar mass = 18.02 g/mol Report your answer with the correct number of significant figures. Your Answer: I Answer units Question 50 (1 point) When 6.23 grams of an unknown metal is heated...
4) A sample of 5.23 kg of copper absorbs heat, which raises the temperature 60.0°C. Determine the amount of heat absorbed, in kJ, if the specific heat capacity of aluminum is 0.385 J/gºC. (4 points)
4) A sample of 5.23 kg of copper absorbs heat, which raises the temperature 60.0°C. Determine the amount of heat absorbed, in kJ, if the specific heat capacity of aluminum is 0.385 J/gºC. (4 points)
Copper has a specific heat of 0.385J/(g• celsius). A piece of copper absorbs 5000J of energy and undergoes a temperature change from 100 degree celsius to 200 degree celsius. What is the mass of the piece copper?
A piece of metal with a specific heat of 1.29 J/g°C is heated to 126.6°C and then placed in 133.868 g of water which is at a temperature of 10.9 °C. After a minute, the temperature of the water has stopped changing and is now 45.6°C. Assuming that there are no heat losses to the container or surroundings, what is the mass of the piece of metal in grams? Assume that water has a specific heat of 4.184 J/g°C. Enter...
Question 10 of 20 A 141.9 g piece of copper (specific heat 0.38 J/g.°C) is heated and then placed into 400.0 g of water initially at 20.7°C. The water increases in temperature to 22.2°C. What is the initial temperature of the copper? (The specific heat of water is 4.18 J/g °C).
Question 16 8 Points Silver is known to be an excellent conductor of heat and electricity. if 8.20 kJ of energy are provided, calculate the energy required (Joules - just put in the number, 4 sig figs) to heat 14.25 g of silver from 25.00 °C to its melting point BLANK-1, the energy required (kJ - just put in the number, 4 sig figs) to melt the silver BLANK-2, and determine whether the silver will reach the boiling point. (yes/no)...
18. When a piece of copper at a temperature of 256.0 °C is added to 255 grams of water at a temperature of 20.0 °C, the final temperature of the resulting mixture is 24.0 °C. If the specific heat capacity of copper is 0.385 J/g°C, calculate the mass of the piece of copper used in the experiment? The specific heat capacity of water is 4.184 J/ g• °C. (5 points)