Chemistry: How many h atoms are in 72.5 g of c3h2o ?

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How many h atoms are in 72.5 g of c3h2o ? - id725323478885, NeonPlaySword

Ответ:

GunnerWilbert5178

08.01.2022

Chemistry

$\large { \boxed{ 1.62 \times 10^{-24} \text{ H atoms}}}$

Explanation:

1. Calculate the moles of C₃H₂O

Moles of C₃H₂O = 72.5 g C₃H₂O × (1 mol C₃H₂O /54.05 g C₃H₂O)

= 1.341 mol C₃H₂O

2. Calculate the molecules of C₃H₂O

6.022 × 10²³ molecules C₃H₂O = 1 mol C₃H₂O

Molecules of C₃H₂O

= 1.341 mol C₃H₂O × (6.022 × 10²³ molecules C₃H₂O /1 mol C₃H₂O)

= 8.08 × 10²³ molecules C₃H₂O

3. Calculate the number of H atoms.

There are two H atoms in one molecule of C₃H₂O

$\rm\text{No. of H atoms} = 8.08 \times 10^{23}\, molecules\, C_{3}H_{2}O \times \dfrac{\text{2 atoms H}}{\rm 1\, molecule \, C_{3}H_{2}O} = \text{1.62$\times 10^{-24}$ H atoms}\\\\\text{There are $\large { \boxed{\mathbf{1.62\times10^{-24}}\textbf{ H atoms}}}$} \text{ in the sample}$

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How many h atoms are in 72.5 g of c3h2o ?

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