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nepheline a nonpartisan that survives at room temperature can be used to protect wool clothing from being eaten by moths.
a) Explain in terms of intermolecular forces why Nephilim sublimes
b) Explain why Nathaline is not expected to dissolve in water
c) The empirical formula of naphthalene is C5H4 and the molecular mass of Nephilim is 128 g flash mole What is the molecular formula for Naphthalene

Sagot :

#1

  • Nephilim has very weak intermolecular forces
  • So on heating it directly turns gas from solid.

#2

  • Nathaline is non polar
  • Water is polar

So it is not expected to dissolve in water.

#3

Empirical formula mass

  • 5(12)+4=60+4=64g

n:-

  • Molecular formula mass/Empirical formula mass
  • 128/64
  • 2

Molecular formula

  • n×Empirical formula
  • 2(C_5H_4)
  • C_10H_8
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