# 010265059 1-c871dcd04fac2a83f70452f3de934140.png - Honors...

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Term
Fall
Professor
NoProfessor
Tags
Heat, joules of heat

Unformatted text preview: Honors Chemistry Name: Calorimetry Practice Worksheet 1. A small pebble is heated and placed in a coffee cup calorimeter containing 25 g of water at 25.0"C. The water reaches a maximum of 26.4'C. How many joules of heat were released by the pebble? 2. When 50.0 g of water containing dissolved HCI are mixed with 50.0 g of water containing dissolved NaOH in a coffee cup calorimeter at a 25.0'C, the temperature of the solution increases to 26.0*C. How much heat was released by this reaction? 3. If 22.0 g of water containing 0.030 moles of HCI are mixed with 39.0 g of water containing 0.030 moles NaOH in a coffee cup calorimeter at 27.0'C. The final temperature of the solution is 35.0'C. How much heat is released in the reaction? A 4.7 g sample of methane (CH4) is burned in a bomb calorimeter containing 912 grams of water at an initial temperature of 29.1"C. After the reaction occurs, the final temperature of the water is 38.4"C. The heat capacity of the calorimeter is 678 J/C. The specific heat of water is 4.184 J/g "C. Calculate qnn in J. 5. A 6.8 mole sample of ethane (C2H6) is burned in a bomb calorimeter containing 1867.15 grams of water at an initial temperature of 14.2"C. After the reaction occurs, the final temperature of the water is 48.4"C. The heat capacity of the calorimeter is 784 J/C. The specific heat of water is 4.184 J/g "C. Calculate qrxn in J....
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