Equal volumes of hydrochloric acid and sodium | vedclass

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Question

(B) Hydrochloric acid $(HCl)$ is a strong acid and sodium hydroxide $(NaOH)$ is a strong base.When equal volumes of $HCl$ and $NaOH$ of the same conce

Vedclass · Accepted Answer

Yellowish green

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(B) Hydrochloric acid $(HCl)$ is a strong acid and sodium hydroxide $(NaOH)$ is a strong base.When equal volumes of $HCl$ and $NaOH$ of the same concentration are mixed,they undergo a neutralization reaction to form sodium chloride $(NaCl)$ and water $(H_2O)$.The chemical equation is: $HCl(aq) + NaOH(aq) \rightarrow NaCl(aq) + H_2O(l)$.Since both are strong and in equal amounts,the resulting solution is neutral,having a $pH$ of $7$.According to the provided $pH$ colour chart,a $pH$ of $7$ corresponds to a yellowish-green colour.

Equal volumes of hydrochloric acid and sodium hydroxide solutions of the same concentration are mixed. The $pH$ of the resulting solution is checked with a $pH$ paper. What would be the colour obtained? (You may use the colour guide given in the figure.)

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