6. Zuren en basen
6. Zuren en basen 6. Zuren en basen
Waterconstante • H 2O + H 2O OH - + H 3O + K c = [OH - ] e.[H 3O + ] e /[H 2O] e² = 10 -7 mol/l x 10 -7 mol/l / (55,5 mol/l)² = 3,25.10 -18 (⇒ evenwicht naar links) • [H 2O] e = 55,5 mol/l (cte) ⇒ K w = [OH - ] e.[H 3O + ] e = 10 -7 mol/l x 10 -7 mol/l = 10 -14 (Waterconstante) • pK w = -log K w = 14 = pH + pOH
Zuurtegraad [H 3O + ] pH pOH [OH - ] oplossing 1 mol/l 0 14 10 -14 mol/l zuur 10 -1 mol/l 1 13 10 -13 mol/l 10 -2 mol/l 2 12 10 -12 mol/l 10 -3 mol/l 3 11 10 -11 mol/l 10 -4 mol/l 4 10 10 -10 mol/l 10 -5 mol/l 5 9 10 -9 mol/l 10 -6 mol/l 6 8 10 -8 mol/l 10 -7 mol/l 7 7 10 -7 mol/l neutraal 10 -8 mol/l 8 6 10 -6 mol/l basisch 10 -9 mol/l 10 -10 mol/l 10 -11 mol/l 10 -12 mol/l 10 -13 mol/l 10 -14 mol/l
- Page 1 and 2: Hoofdstuk 6 Zuren en basen Chemie 5
- Page 3 and 4: Brønstedzuren en -basen • Brøns
- Page 5 and 6: Zuur-base-eigenschappen zouten •
- Page 7: Ionisatie van water • Water is ee
- Page 11 and 12: Sterke en zwakke zuren • Sterk zu
- Page 13 and 14: Evenwicht HAc-oplossing • HAc + H
- Page 15 and 16: Sterke en zwakke basen • Sterke b
- Page 17 and 18: Evenwicht NH 3-oplossing • NH 3 +
- Page 19 and 20: Zuur-basekoppels (HCl) • HCl + H
- Page 21 and 22: Rangschikking zuur-basekoppels •
- Page 23 and 24: pH van oplossingen van zwakke zuren
- Page 25 and 26: pH van oplossingen van sterke basen
- Page 27 and 28: pH van oplossingen van zouten • M
- Page 29 and 30: Oefeningen p. 139 1. Bereken pH: a,
- Page 31 and 32: Buffers • Oplossing van een zwak
- Page 33 and 34: Buffer + sterk zuur of base • Pro
- Page 35 and 36: Oefening buffer + sterk zuur / base
- Page 37 and 38: Neutralisatie NaOH + HCl • [NaOH]
- Page 39 and 40: Neutralisatie NH 3 + HCl • [NH 3]
- Page 41 and 42: Neutralisatie NH 3 + HAc • [NH 3]
Zuurtegraad<br />
[H 3O + ] pH pOH [OH - ] oplossing<br />
1 mol/l 0 14 10 -14 mol/l zuur<br />
10 -1 mol/l 1 13 10 -13 mol/l<br />
10 -2 mol/l 2 12 10 -12 mol/l<br />
10 -3 mol/l 3 11 10 -11 mol/l<br />
10 -4 mol/l 4 10 10 -10 mol/l<br />
10 -5 mol/l 5 9 10 -9 mol/l<br />
10 -6 mol/l 6 8 10 -8 mol/l<br />
10 -7 mol/l 7 7 10 -7 mol/l neutraal<br />
10 -8 mol/l 8 6 10 -6 mol/l basisch<br />
10 -9 mol/l<br />
10 -10 mol/l<br />
10 -11 mol/l<br />
10 -12 mol/l<br />
10 -13 mol/l<br />
10 -14 mol/l
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