3 years ago

The maximum number of electron that can occupy the third principle energy level is

Chemistry

2 answers:

Lelechka [254]3 years ago

4 0

I believe the answer is 18.

RUDIKE [14]3 years ago

3 0

<span>The maximum number of electron that can occupy the third principle energy level is 18</span>

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A 0.1326 g sample of magnesium was burned in an oxygen bomb calorimeter. the total heat capacity of the calorimeter plus water w

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Answer: Th enthalpy of combustion for the given reaction is 594.244 kJ/mol

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W are given a chemical reaction:

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$c=5760J/^oC$

$\Delta T=0.570^oC$

To calculate the enthalpy change, we use the formula:

$\Delta H=c\Delta T\\\\\Delta H=5760J/^oC\times 0.570^oC=3283.2J$

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So, energy released when 1 gram of sample was burned is = $\frac{3283.2J}{0.1326g}=24760.181J/g$

Energy 1 mole of magnesium is being combusted, so to calculate the energy released when 1 mole of magnesium ( that is 24 g/mol of magnesium) is being combusted will be:

$\Delta H=24760.181J/g\times 24g/mol\\\\\Delta H=594244.3J/mol\\\\\Delta H=594.244kJ/mol$

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3 years ago