الأجوبة
H2SO4 + 2H2O → SO4-2 + 2H3O+
(حمض1) (أساس2) (أساس مرافق1) (حمض مرافق2)
[H3O+] = 10-PH = 10-1 mol/L
[H3O+] = 2Ca
Ca = [H3O+]/2 = 0.1/2 = 0.05 mol/L
m = C(mol/L).V.M = 0.05*50*10-3*98 = 0.245 g
C1.V1 = C2.V2
0.1*10 = C2*100
C2 = 10-2 mol/L
PH = -log[H3O+] = -log 10-2 = 2
H2SO4 + 2H2O → SO4-2 + 2H3O+
(حمض1) (أساس2) (أساس مرافق1) (حمض مرافق2)
[H3O+] = 10-PH = 10-1 mol/L
[H3O+] = 2Ca
Ca = [H3O+]/2 = 0.1/2 = 0.05 mol/L
m = C(mol/L).V.M = 0.05*50*10-3*98 = 0.245 g
C1.V1 = C2.V2
0.1*10 = C2*100
C2 = 10-2 mol/L
PH = -log[H3O+] = -log 10-2 = 2
أسئلة مشابهة
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