Question

Write a net ionic equation to show how quinoline, c9h7n, behaves as a base in water.

Answer 1

Quinoline, $C_{9}H_{7}N$acts a Bronsted-Lowry base as it can accept a proton, $H^{+}$from water to form the conjugate base, $C_{9}H_{7}NH^{+}$. This reaction can be represented as,

$C_{9}H_{7}N(aq)+H_{2}O(l) C_{9}H_{7}NH^{+}(aq)+OH^{-}(aq)$

Here in the reaction, the weak base quinoline accepts a proton $H^{+}$from water to form the conjugate base of quinoline, $C_{9}H_{7}NH^{+}$ and hydroxide ion, $OH^{-}$

Therefore the net ionic equation to show the basic nature of quinoline in water is,

$C_{9}H_{7}N(aq)+H_{2}O(l) C_{9}H_{7}NH^{+}(aq)+OH^{-}(aq)$