The addition of solid sodium carbonate (Na_2C | vedclass

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(B) Sodium carbonate $(Na_2CO_3)$ is a salt of a strong base $(NaOH)$ and a weak acid $(H_2CO_3)$.When dissolved in water,it undergoes anionic hydroly

Vedclass · Accepted Answer

An increase in alkalinity

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(B) Sodium carbonate $(Na_2CO_3)$ is a salt of a strong base $(NaOH)$ and a weak acid $(H_2CO_3)$.When dissolved in water,it undergoes anionic hydrolysis:$CO_3^{2-} + H_2O \rightleftharpoons HCO_3^- + OH^-$This reaction produces hydroxide ions $(OH^-)$,which increases the concentration of $OH^-$ ions in the solution.Consequently,the solution becomes basic (alkaline),leading to an increase in alkalinity and a $pH$ value greater than $7$.

The addition of solid sodium carbonate $(Na_2CO_3)$ to pure water causes:

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