Lesson 6

Kw is ___________ dependent so value can change

Kw is ___________ dependent so value can change

temperature

What is K_w? What concentrations are involved with it?

1. Water’s Equilibrium Constant

2. [H⁺_(aq)][OH⁻_(aq)]

Is Water Dissociation Exothermic or Endothermic? What does it mean for the equation?

1. endothermic

2. pH decreases

3. H₂O + H₂O ⇌ H₃O⁺ + OH⁻

Even though pH changes with temperature, it stays ______

‘neutral’— equal ratio of H⁺ and OH⁻!

What is the relationship between pH and pOH

They have a ratio where pH + pOH = 14

What is the equation involving pH, pOH, and pK_w?

pH + pOH = pk_w

All equations related

How can we get pH/pOH from Concentration?

• Strong Acids and Bases dissociate completely

• ratios can be used from [ions] from the [solution]