6. Zuren en basen

6. Zuren en basen 6. Zuren en basen

10.09.2013 Views

pH-curve • Voeg aan 100 ml water [HCl] = 1 mol/l toe: 0,1 ml / 1 ml / 2 ml / 10 ml … grafiek pH ifv. V HCl • Voeg aan 100 ml water [NaOH] = 1 mol/l toe: 0,1 ml / 1 ml / 4 ml / 10 ml … grafiek pH ifv. V NaOH 7,00 6,00 5,00 4,00 3,00 2,00 1,00 0,00 14,00 13,00 12,00 11,00 10,00 9,00 8,00 7,00 pH ifv. V(HCl) 0 1 2 3 4 5 6 7 8 9 10 pH ifv. V(NaOH) 0 1 2 3 4 5 6 7 8 9 10

Buffer + sterk zuur of base • Proef: HAc/Ac - -buffer + NaOH of HCl Buffer HCl 1 mol/l pH 50 ml 0 ml 0,1 ml 1,0 ml 4,0 ml 4,75 4,73 4,57 3,80 Buffer NaOH 1 mol/l pH 50 ml 0 ml 0,1 ml 1,0 ml 4,0 ml 4,75 4,77 4,93 5,70 pH wijzigt weinig ivm. pH-curve zuiver water

Buffer + sterk zuur of base<br />

• Proef: HAc/Ac - -buffer + NaOH of HCl<br />

Buffer HCl 1 mol/l pH<br />

50 ml 0 ml<br />

0,1 ml<br />

1,0 ml<br />

4,0 ml<br />

4,75<br />

4,73<br />

4,57<br />

3,80<br />

Buffer NaOH 1 mol/l pH<br />

50 ml 0 ml<br />

0,1 ml<br />

1,0 ml<br />

4,0 ml<br />

4,75<br />

4,77<br />

4,93<br />

5,70<br />

pH wijzigt weinig ivm. pH-curve zuiver water

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