Tentang : LARUTAN PENYANGGA (BUFFER) tentukan ph larutan 100 ml HCL yang mempunyai PH = 1 dicampur dengan 100 ML larutan NH4OH 0,2 M! (Kb NH4OH = 1,7 x 10 pangkat min 5),,,,,,
Amaldoft
Diket dan dit: *pH = 1 milik HCl --> [H+] = [HCl] = 10^-1 *n HCl = 100 mL x 10^-1 M = 10 mmol *n NH4OH = 100 mL x 0,2 M = 20 mmol *Kb = 1,7 x 10^-5 *pH ?
HCl + NH4OH ---> NH4Cl + H2O m 10 20 b -10 -10 +10 s - 10 10
[H+] = Ka x b/g = 1,7 x 10^-5 x 10/10 = 1,7 x 10^-5 pH = 5 - log 1,7
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leeyhoo
[email protected],,,,makasi ya bantuannya kak :)
Amaldoft
Terimakasih di tombol biru dan tanda bintang jangan lupa ya
*pH = 1 milik HCl --> [H+] = [HCl] = 10^-1
*n HCl = 100 mL x 10^-1 M = 10 mmol
*n NH4OH = 100 mL x 0,2 M = 20 mmol
*Kb = 1,7 x 10^-5
*pH ?
HCl + NH4OH ---> NH4Cl + H2O
m 10 20
b -10 -10 +10
s - 10 10
[H+] = Ka x b/g
= 1,7 x 10^-5 x 10/10
= 1,7 x 10^-5
pH = 5 - log 1,7