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A sample of iron was heated to 112.0 °C, then placed into 260 g of water at 22.8 °C. The temperature of the water rose to 29.5 °C. How many grams of iron were in the sample? (Refer to a table of specific heat of selected substances.) TABLE 4.3 | Specific Heat of Selected Substances Substance Specific heat (J/g°C) Specific heat (cal/g°C) Water 4.184 1.000 Ethyl alcohol Ice Aluminum 2.138 2.059 0.511 0.492 0.215 0.900 Iron 0.473 0.113 0.385 0.0921 Copper Gold 0.131 0.0312

A sample of iron was heated to 112.0 °C, then placed into 260 g of water at 22.8 °C. The temperature of the water rose to 29.5 °C. How many grams of iron were in the sample? (Refer to a table of specific heat of selected substances.) TABLE 4.3 | Specific Heat of Selected Substances Substance Specific heat (J/g°C) Specific heat (cal/g°C) Water 4.184 1.000 Ethyl alcohol Ice Aluminum 2.138 2.059 0.511 0.492 0.215 0.900 Iron 0.473 0.113 0.385 0.0921 Copper Gold 0.131 0.0312

Chemistry by OpenStax (2015-05-04)
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 20E: A 45-g aluminum spoon (specific heat 0.88 J/g C) at 24 C is placed in 180 mL (180 g) of coffee at 85...
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A sample of iron was heated to 112.0 °C, then placed into 260 g of water at 22.8 °C. The temperature of the water rose to 29.5 °C. How many grams of iron were in the sample? (Refer to a table of specific heat of selected substances.) TABLE 4.3 | Specific Heat of Selected Substances Substance Specific heat (J/g°C) Specific heat (cal/g°C) 1.000 0.511 Water 4.184 Ethyl alcohol Ice Aluminum 2.138 2.059 0.492 0.900 0.215 Iron 0.113 0.0921 0.473 0.385 Copper Gold Lead 0.131 0.128 0.0312 0.0305
Transcribed Image Text:A sample of iron was heated to 112.0 °C, then placed into 260 g of water at 22.8 °C. The temperature of the water rose to 29.5 °C. How many grams of iron were in the sample? (Refer to a table of specific heat of selected substances.) TABLE 4.3 | Specific Heat of Selected Substances Substance Specific heat (J/g°C) Specific heat (cal/g°C) 1.000 0.511 Water 4.184 Ethyl alcohol Ice Aluminum 2.138 2.059 0.492 0.900 0.215 Iron 0.113 0.0921 0.473 0.385 Copper Gold Lead 0.131 0.128 0.0312 0.0305
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