Lesson 6

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Kw is ___________ dependent so value can change

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1

Kw is ___________ dependent so value can change

temperature

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2

What is Kw? What concentrations are involved with it?

  1. Water’s Equilibrium Constant

  2. [H⁺(aq)][OH⁻(aq)]

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3

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

  1. endothermic

  2. pH decreases

  3. H2O + H2O ⇌ H₃O⁺ + OH⁻

<ol><li><p><span style="color: blue"><strong>endothermic</strong></span></p></li><li><p><span style="color: #F39F18"><strong>pH decreases</strong></span></p></li><li><p>H<sub>2</sub>O + H<sub>2</sub>O ⇌ H₃O⁺ + OH⁻</p></li></ol><p></p>
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4

Even though pH changes with temperature, it stays ______

neutral’— equal ratio of H⁺ and OH⁻!

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5

What is the relationship between pH and pOH

They have a ratio where pH + pOH = 14

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6

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

pH + pOH = pkw

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7

All equations related

knowt flashcard image
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8

How can we get pH/pOH from Concentration?

  • Strong Acids and Bases dissociate completely

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

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