Pure water at 25 , C has a measured pH of 7.00

CHEMISTRY · Single correct · A Level · Chemistry · Acids and bases · Acids and bases

Problem

Pure water at 25\,

^{\circ}

C has a measured pH of 7.00. What is the concentration of hydronium ions in this water? (a)

1.0\times10^{-6}\,\text{M}

(b)

1.0\times10^{-14}\,\text{M}

(c)

1.0\times10^{-7}\,\text{M}

(d)

7.0\times10^{-7}\,\text{M}