Explore Westonci.ca, the leading Q&A site where experts provide accurate and helpful answers to all your questions. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.

Concentration of Ca(OH)2 is 10^-2 ..find its pH value.Explain too.

Sagot :

pH = -log[H⁺]

Ca(OH)₂ <---> Ca²⁺ + 2OH⁻

Concentration = 10⁻² mol/l = 0,01 mol/l

pOH = -log[OH⁻]
pOH = -log(0,01) = 2
pH + pOH = 14
pH + 2 = 14
pH = 14 - 2
pH = 12