At , pure water has mole litre . What is the value of at…

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

Problem

90^\circ\text{C}

, pure water has

[\text{H}_3\text{O}^+] = 10^{-6}

mole litre

^{-1}

. What is the value of

K_w

90^\circ\text{C}

? (1)

10^{-6}

(2)

10^{-12}

(3)

10^{-14}

(4)

10^{-8}