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Tresset [83]
3 years ago
11

3. what is the relationship between a coefficient; chemical formula

Chemistry
1 answer:
Novosadov [1.4K]3 years ago
4 0

The coefficient in a chemical formula represents the amount of each chemical present. The amount of a substance is measured in moles.

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A three-carbon alkene contains two double bonds. Predict its molecular formula? A. C3H4 B. C3H5 C. C3H6
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The correct answer is A. C3H4 is the three-carbon alkene contains two double bonds. Alkenes are a class of organic compounds with carbon-carbon double bond. The structure for C3H4 is:
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H2C=C=CH2</span>
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4 years ago
What is it’s molecular formula for C5H4 if it’s molar mass is 128.17g/mol
Anna [14]
<h2>Answer :</h2><h3><u>QUESTION ①)</u></h3>

✔ C5H4 has a molecular molar mass of :

<em>M(C5H4) = 5 x M(C) + 4 x M(H) </em>

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✔ The molecular mass of C5H4 is therefore 64 g/mol.

  • But, 128/64 = 2
<h3>This is double the molar mass of C5H4, this molecule has the formula 2C5H4.</h3>
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Answer:

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Define: Ion<br><br> Define: Polar Molecule<br><br> Define: Subscript<br><br> Define: Coefficient
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