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erastovalidia [21]
2 years ago
14

How do lone pairs of electrons influence the structure of molecules

Chemistry
1 answer:
dybincka [34]2 years ago
6 0

Answer:

Electron pairs repel each other and influence bond angles and molecular shape. The presence of lone pair electrons influences the three-dimensional shape of the molecule.

Explanation:

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When octane (C8H18) is burned in the presence of oxygen, the yield of products (carbon dioxide and water) is 87%. What mass of c
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Answer:

14.5g of CO₂ are produced

Explanation:

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0.184 moles C₈H₁₈ ₓ (25/2 moles O₂ / 1 mole C₈H₁₈) = <em>2.3 moles of oxygen</em>

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But, as yield of products is 87%, moles produced of CO₂ are:

0.380 moles of CO₂ ₓ 87% = 0.331 moles CO₂ are produced.

As molar mass of CO₂ is 44g/mol, mass of CO₂ in 0.331 moles is:

0.331 moles CO₂ ₓ (44g / mol) =

<h3>14.5g of CO₂ are produced</h3>
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