A Sample of Iron at ( 23.0 C ) is warmed at 108.0 C when 872 Cal of heat is added. What is the mass of the iron? (ciron= 0.108 kcal/kg C)
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show work 8. A sample of metal at 20.0°C is warmed to 123°C when 274cal is added. What is the mass of the metal? (Assume Cpetl 0.028cal / g"C) (15 points)
a sample of silver at 22.0°c is warmed to 125°c when 294cal is added. what is the mass of the silver
8. How many heater to h 9. A 200.0 g 2.6 kcal of V 1UAU C to 70.0°C. About how many minutes did this take? 9. A 100.0 g sample of metal is warmed 20.0°C when 60.0 cal is added. What is the specific heat of this metal?
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The temperature of a sample of iron increased by 24.3 °C when 269 J of heat was applied. What is the mass of the sample? Substance Specific heat J/(g · °C) lead 0.128 silver 0.235 copper 0.385 iron 0.449 aluminum 0.903
It is observed that 3.23 kcal of energy are released when a 40.5 g sample of an unknown liquid condenses. What is the heat of vaporization of the unknown liquid in cal/g? Heat of vaporization = ? cal/g
How much heat is gained by nickel when 29.2 g of nickel is warmed from 18.3°C to 69.6°C? The specific heat of nickel is 0.443 J/(g. °C). 0 2.37 × 10², 09.00 x 102, 22.73 6.64 x 102) 30.8) Question 11 (1 point) A 170.0-g sample of metal at 78.0°C is added to 170.0 g of H2O() at 15.0°C in an insulated container. The temperature rises to 17.9°C. Neglecting the heat capacity of the container, what is the specific heat...
An amount 10.24 kcal of heat is added to a 35.0 g sample of a liquid at 25.0°C. The final temperature is 87.4°C. What is the specific heat of the substance in cal/g°C?
A sample of iron, which has a specific heat capacity of 0.449 J.g . °C , is put into a calorimeter (see sketch at right) that contains 250.0 g of water. The iron sample starts off at 85.4 °C and the temperature of the water starts off at 20.0 °C. When the temperature of the water stops changing it's 21.6 °C. The pressure remains constant at 1 atm. Calculate the mass of the iron sample. Be sure your answer is...
.1. A 2.50 kg block of ice at 0°C is added to a picnic cooler. How much heat (in kcal) will the ice remove as it melts to water at 0°C? 2. A 300.0 g pot of water at room temperature (25.0°C) is placed on a stove. How much heat (in kcal) is required to change this water to steam at 100.0°C? 3. Spent steam from an electric generating plant leaves the turbines at 110.0°C and is cooled to 95.0°C liquid water...