of is mixed with of : — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

💡 Solution & Explanation

$\text{moles } Na_2CO_3 = 0.01$, $\text{moles } HCl = 0.01$. <br>Reaction: $Na_2CO_3 + HCl \rightarrow NaHCO_3 + NaCl$. <br>Stoichiometry is $1:1$. $NaHCO_3$ and $NaCl$ form without gas evolution. $[Na^+] = (2 \times 0.01) / 0.2 \text{ L} = 0.1 \text{ M}$.