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| 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) |
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| 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) |
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| 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? |
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| 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) |
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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 |
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| A sample of nitrogen gas at 250. kpa occupies 2.50 L. What is the neq volume if the pressure decreases to 75 kpa? |
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| What is the new volume of a gas at 720 mm if the pressure changes to 2.00 atm? |
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| What temperature would be required to decrease 25 L of a gas at 35 °C to a new volume of 2.00 ml? |
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