Answer:
Explanation:
Hello!
In this case, as we know the mass of the total sample, we can first compute the mass of oxygen:
Next, we compute the moles of each element:
Now, we divide the moles by 0.184 moles, the fewest ones, to obtain:
Therefore, the empirical formula is:
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Answer:
Ba(OH)₂ requires more H₂SO₄ to reach neutralization..
Explanation:
- At neutralization, acid neutralize base to form salt and water at equivalence.
- NH₄OH is neutralized by H₂SO₄ according to the reaction:
<em>2NH₄OH + H₂SO₄ → (NH₄)₂SO₄ + 2H₂O.</em>
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It is clear that every 2 mol of NH₄OH need 1 mol of H₂SO₄ to be neutralized.
- Ba(OH)₂ is neutralized by H₂SO₄ according to the reaction:
<em>Ba(OH)₂ + H₂SO₄ → BaSO₄ + 2H₂O.</em>
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It is clear that every 1 mol of NH₄OH needs 1 mol of H₂SO₄ to be neutralized.
<em>So, Ba(OH)₂ requires more H₂SO₄ to reach neutralization.</em>
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Answer: 1 mol C8H18 produces 9 mol H2O
Explanation: reaction : C8H18 + 12.5 O2 ⇒ 8 CO2 + 9 H2O