At , where , of NaOH is added to of lactic acid (HLac). Determine the of the solution…

CHEMISTRY · Subjective · A Level · Chemistry · Acids and bases · Acids and bases

Problem

40\,\text{°C}

, where

K_w = 2.92\times10^{-14}

40.0\,\text{mL}

0.100\,\text{M}

NaOH is added to

30.0\,\text{mL}

0.0800\,\text{M}

lactic acid (HLac). Determine the

pH

of the solution after mixing, using the temperature-appropriate value of

K_w