# Shared Flashcard Set

## Details

Final Review Ch. 11 (math)
Final Review Ch. 11 (math)
8
Chemistry
05/27/2006

Term
 How much heat does it take to warm 16.0 grams of pure water from 90.0°C to 100.0°C? (specific heat of water = 4.18J/g x °C)
Definition
 669 joules
Term
 Calculate the energy required to produce 7.00 mol Cl2O7 on the basis of the following balanced equation: 2Cl2(g) + 7O2(g)+ 130 kcal -> 2Cl2O7(g)
Definition
 455 kcal
Term
 When 1.0g of solid NaOH (change in heat os solution=-445.1 kJ/mol) dissolves in 10 L of water, how much heat is released?
Definition
 11.1 kJ
Term
 When 10g of diethyl etheris converted to vapor at its boiling point, about how much heat is absorbed? (C4H10O, change in heat of vaporization=15.7 kJ/mol, boiling point: 34.6 °C)
Definition
 2kJ
Term
 Calculate the energy released when 24.8g Na2O reacts in the following reaction:Na2O(s) + 2 HI(g) -> 2NaI(s) + H2O(l) change in heat = -120.0 kcal
Definition
 48.0 kcal
Term
 A sample of nitrogen gas at 250. kpa occupies 2.50 L. What is the neq volume if the pressure decreases to 75 kpa?
Definition
 8.3 L
Term
 What is the new volume of a gas at 720 mm if the pressure changes to 2.00 atm?
Definition
 7.1 L
Term
 What temperature would be required to decrease 25 L of a gas at 35 °C to a new volume of 2.00 ml?
Definition
 0.02464 K
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