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How many mol of hydrogen in 2.7 mol of caffeine?

User Nashuald
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2 Answers

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n(C₈H₁₀N₄O₂)=2.7 mol

n(H)=10n(C₈H₁₀N₄O₂)

n(H)=10·2.7=27 mol
User Andrey Neverov
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Answer : The number of moles of hydrogen in 2.7 mole of caffeine are 27 moles.

Explanation : Given,

Moles of caffeine = 2.7 mole

The molecular formula of caffeine is,
C_8H_(10)N_4O_2

In the molecule
C_8H_(10)N_4O_2, there are 8 moles of carbon, 10 moles of hydrogen, 4 moles of nitrogen and 2 moles of oxygen.

As, 1 mole of
C_8H_(10)N_4O_2 contains 10 moles of hydrogen

So, 2.7 moles of
C_8H_(10)N_4O_2 contains
2.7* 10=27 moles of hydrogen

Therefore, the number of moles of hydrogen in 2.7 mole of caffeine are 27 moles.

User Joseph Ditton
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