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densk [106]
3 years ago
5

The ΔHfus for ethanol is 4.60 kJ/mol. If it takes 7500.0 Joules of energy to melt a sample of ethanol, how many grams of ethanol

are in the sample? The chemical formula for ethanol is C2H5OH.
Chemistry
1 answer:
timama [110]3 years ago
4 0

Answer:

Explanation:

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How much of a 0.250 M lithium hydroxide is required to neutralize 20.0 mL of 0.345M chlorous acid?
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The reaction of lithium hydroxide (LiOH) with chlorous acid (HClO₂) is:

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<em>That means, 1 mole of hydroxide reacts per mole of acid</em>

Moles of  20.0 mL = 0.0200L of 0.345M chlorous acid are:

0.0200L ₓ (0.345mol / L) = <em>6.90x10⁻³ moles of HClO₂</em>

To neutralize this acid, you need to add the same number of moles of LiOH, that is 6.90x10⁻³ moles. As the LiOH contains 0.250 moles / L:

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<h3>27.6mL of LiOH 0.250M</h3>
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