An aqueous solution of HCl with pH 1.0 is diluted by adding equal volume of water (ignoring dissocia

Question

An aqueous solution of HCl with pH 1.0 is diluted by adding equal volume of water (ignoring dissociation of water). The pH of HCl solution would\ (Given $\log 2=0.30$ )\

Professor PC Thomas Classes · Answer

(c) : Given, $\mathrm{pH}_{\mathrm{HCl}}=1.0$;\ $\left[\mathrm{H}^{+}ight]=10^{-1} \mathrm{M}$\ Now after dilution, concentration\ $=\frac{0.1}{2}=0.05=5 	imes 10^{-2} \mathrm{M}$\ $\mathrm{pH}=-\log (0.05)=1.30$\