An unknown sample of metal with a mass of 20.0 grams absorbed 210 joules of energy. The temperature of the metal increased from 25.0°C to 70.0°C. Calculate the specific heat of the metal. What is the identity of the metal?
gold
silver
copper
iron
aluminum
An unknown sample of metal with a mass of 20.0 grams absorbed 210 joules of energy....
You are given an unknown metal. You obtain the following data for the unknown metal: The mass is 4.25kg and when 2.278x 10^4J of heat is added to this sample, (initially at a temperature of 24.33 C) the temperature increases to 38.25 C. Identify the unknown metal Specific Heat (J/g C) Aluminum 0.902 Copper 0.385 Gold 0.129 Iron 0.450 Zinc 0.140 Lead 0.132
a) calculate the temperature change for a 987 gram sample of water that absorbed 6,990 joules of heat. is this endo- or exorthermic? b) how many grams of water when absorbing 12,000 calories will heat from 31.2 degrees c to 99.5 degrees c? c) 69.8 grams of aluminum is heated with 3,900 joules of energy. what will be the temperature change? what would the temperature be if the initial temperature was 25.0 degrees c? the c for aluminum is =...
You are given an unknown metal. You obtain the following data for the unknown metal: The mass is 3.50kg and when 1.319 x 10^4J of heat is added to this sample, (initially at a temperature of 21.33 C) the temperature increases to 48.25C. Identify the unknown metal. Metal Specific Heat (J/g C) Aluminum 0.902 Copper 0.385 Gold 0.129 Iron 0.450 Zinc 0.140 Lead 0.132
what is the specific heat of an unknown metal if when 20.0 grams of the metal were heated from 20.0°C to 100.0°C the metal absorbed 618 J of heat?
If 3.50 KJ of energy is absorbed by a metal sample that has a mass of 118.0 grams, and the temperature increased from 25.0oC to 255oC, what metal could the sample be?
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A sample of aluminum metal absorbed 11.2 J of heat. The temperature of the sample increased from 23.2 °C to 30.5 °C. The specific heat of aluminum is 0.90 J/g °C. What is the mass of the sample in grams? 0 72 g O 1.7 g O 119 O 65 g O 7.3 g
3. Calculate the heat absorbed by 25.0 g of water needed to raise its temperature from 20.0°C to 65.0'C. The specific heat of water is 4.18 J/gºC. Show your work Final Answer 4. Aluminum metal has a specific heat of 0.901 J/g C. How much heat is transferred to a 6.75 g piece of aluminum initially at room temperature, 20.0°C, when it is placed into boiling water? The temperature of boiling water is 100°C. Show your work Final Answer 5....
Identify an unknown metal by determining its specific heat capacity (Csp). It takes 26,347 J of heat to raise the temperature of 253.5 grams of the unknown metal from 31.4°C to 146.5°C. Determine the Csp and then use the adjacent table to identify the metal.de Date: city (Cs). of the then use the TABLE 6.4 Specific Heat Capacities of Some Common Substances Specific Heat Capacity, Cs Substance (J/g °C)* Elements 0.128 Lead 0.128 Gold Silver 0.235 0.385 sorto no 12...
An unknown metal has a mass of 32.6 g. When 983 J of heat are added to the sample, the sample temperature changes by 40.2°C. Calculate the specific heat of the unknown metal. Specific heat (J/g* C) Metal potassium 0.750 silver 0.240 lead 0.160 specific heat: J/(g C) barium 0.204 calcium 0.650 What is the possible identity of the metal based on the calcium 0.650 calculated specific heat? O potassium lead silver Ocalcium
An unknown metal has a mass of 33.8 g. When 2270 J of heat are added to the sample, the sample temperature changes by 65.7 °C. Calculate the specific heat of the unknown metal. Specific heat (J/g. C) 1.023 Metal magnesium copper lead 0.385 0.160 0.204 specific heat: J/g. "C) barium calcium zinc 0.650 0.390 What is the possible identity of the metal based on the calculated specific heat? lead zinc magnesium O copper