Question

during the analysis, 0.163 g h₂o and 0.600 g co₂ are produced. calculate the amount (mol) c in the sample, considering the mass of co₂ gas formed by combustion. 0.00905 mol h₂o formed 0.0181 mol h in sample

Explanation:

Step1: Determine molar mass of CO₂

The molar mass of CO₂ is $M_{CO_2}=12.01 + 2\times16.00=44.01\ g/mol$.

Step2: Calculate moles of CO₂

Use the formula $n=\frac{m}{M}$, where $m = 0.600\ g$ and $M = 44.01\ g/mol$. So $n_{CO_2}=\frac{0.600\ g}{44.01\ g/mol}\approx0.0136\ mol$.

Step3: Find moles of C

In CO₂, the number of moles of C is equal to the number of moles of CO₂. So the number of moles of C in the sample is $n_C = 0.0136\ mol$.

Answer:

0.0136 mol