Chemistry H IMF + Thermochemical Equations - van ness - smchs

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Chemistry

Intermolecular Forces

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1
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Ethanol (C2H5OH) burns according to the equation:
C2H5OH (l) + 3O2 (g) → 2CO2 (g) + 3H2O (l)
ΔH = -1367 kJ
How much heat is released when 35.0 g of ethanol is burned?

1,040 kJ

2
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Given the thermochemical equation:
2SO2 (g) + O2 (g) → 2SO3 (g)
ΔH = -198 kJ
how much heat is released when 600.0 g of SO2 is burned?

928 kJ

3
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Consider the following compounds:
CO, NH3, CO2, CH4, H2
How many of the compounds above exhibit dispersion forces?

5

4
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Consider the following compounds:
CO, NH3, CO2, CH4, H2
Which compound has the highest boiling point?

CO2

5
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Is the molecule CF3Br nonpolar or polar?

polar