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Zanzabum
3 years ago
14

What is it’s molecular formula for C5H4 if it’s molar mass is 128.17g/mol

Chemistry
1 answer:
Anna [14]3 years ago
7 0
<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>

  • M(C5H4) = 5 x 12 + 4 x 1
  • M(C5H4) = 60 + 4
  • M(C5H4) = 64 g/mol

✔ 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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