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kumpel [21]
3 years ago
14

What is the pH of a 1.7 × 10⁻⁴ M HClO₄ solution?

Chemistry
1 answer:
Mamont248 [21]3 years ago
3 0
Ph= -log[h30]

Ph= -log[1.7x10^-4]

pH= 3.77

pH is acidic
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The enthalpy of fusion of methanol (CH3OH) is 3.16 kJ/mol. How much heat would be absorbed or released upon freezing 25.6 grams
Verdich [7]

Answer:

There is  2.52 kJ of energy released (option 4)

Explanation:

Step 1: Data given

The enthalpy of fusion of methanol (CH3OH) is 3.16 kJ/mol

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Molar mass of methanol = 32.04 g/mol

Step 2: Calculate moles of methanol

Moles methanol = mass methanol / molar mass methanol

Moles methanol = 25.6 grams / 32.04 g/mol

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Step 3: Calculate energy transfer

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2 years ago
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2 years ago
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3 years ago
Hello people ~
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Answer:

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