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Irina18 [472]
3 years ago
14

Consider an ionic compound, MX, composed of generic metal M and generic, gaseous halogen X.The enthalpy of formation of MX is ΔH

f° = –423 kJ/mol. The enthalpy of sublimation of M is ΔHsub = 119 kJ/mol. The ionization energy of M is IE = 469 kJ/mol. The electron affinity of X is ΔHEA = –301 kJ/mol. (Refer to the hint). The bond energy of X2 is BE = 161 kJ/mol. Determine the lattice energy of MX.
Chemistry
1 answer:
Studentka2010 [4]3 years ago
7 0
Here are the given:
<span>ΔHf° = –423 kJ/mol
</span> ΔHsub = 119 kJ/mol
IE = 469 kJ/mol
ΔHEA = –301 kJ/mol
BE = 161 kJ/mol

The lattice energy of the compound is solved using the formula:
U = <span>ΔHf° - </span>ΔHsub - BE - IE - ΔHEA
U = -423 - 119 - 161 - 469 - (-301)
U = -871 kJ/mol

Therefore, the lattice energy is 871 kJ/mol (released).
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Answer:

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Explanation:

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Explanation:

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2) checking for the limiting reactant:

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Phenolphthalein indicator is??
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Answer:

Hey mate.....

Explanation:

This is ur answer.....

<em>Phenolphthalein is often used as an indicator in acid–base titrations. For this application, it turns colorless in acidic solutions and pink in basic solutions. It belongs to the class of dyes known as phthalein dyes.</em>

Hope it helps!

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7 0
3 years ago
A 2.49 g sample of aniline (C6H5NH2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter with a heat capacity of 4.25
Maslowich

The value of delta H° for aniline = 6415 Kj/mol

<u><em>calculation</em></u>

Step 1: find heat

Q (heat)  =  C (specific heat capacity)  x ΔT (change in temperature)

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Fossil fuel combustion increases the acidity of rain because the sulfur dioxide is produced.  

Because of fuel combustion, sulfur dioxide goes up into the atmosphere as the hot gases rise, than it reacts with water and oxygen in the air and form sulfuric acid.

6 0
3 years ago
Read 2 more answers
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