Question

Sodium bicarbonate on heating decomposes to form sodium carbonate, $C{O}_2$ and water. If $0.2$ mole of sodium bicarbonate is completely decomposed, how many moles of sodium carbonate is formed?

• A. $0.1$
• B. $0.2$
• C. $0.05$
• D. $0.025$

Answer 1

The correct option is A $0.1$

When sodiun bicarbonate is heated it it decompose to form sodium carbonate, $C{O}_2$ and $H_{2}O$, the reaction involved is :

$2NaHC{O}_3\left(s\right)\stackrel{\Delta }{\to }N{a}_{2}C{O}_3\left(s\right)+C{O}_2\left(g\right)+H_{2}O\left(l\right)$

Hence according to the given balanced reaction $0.1$ moles of sodium carbonate is formed.