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pH inicial: 2,54 cido malnico (C3H4O4) malonato de sodio (NaC3H3O4) Adicin de HCl (cada de pH) mL de HCl aadido pH 4.12 -0.51 6.93 -0.69
pH inicial: 2,54
cido malnico (C3H4O4) | malonato de sodio (NaC3H3O4) |
Adicin de HCl (cada de pH) | |
mL de HCl aadido | pH |
4.12 | -0.51 |
6.93 | -0.69 |
11.59 | -0.89 |
25.63 | -1.09 |
49,9 | -1.24 |
Adicin de NaOH (aumento de pH) | |
mL de NaOH aadido | pH |
1.91 | 2.77 |
2.61 | 3.00 |
3.56 | 3.21 |
4.43 | 3.48 |
4.98 | 3.69 |
5.39 | 3.96 |
5.87 | 4.25 |
6.36 | 4.51 |
6.9 | 4.71 |
Describa claramente cmo hizo su bfer asignado con su pH objetivo.
Suponiendo que no haya cambios de volumen, cuntos ml de NaOH 0,1 M (utilice su concentracin determinada a partir de la estandarizacin) se deben agregar a su solucin amortiguadora para un cambio de pH de 1,0?
concentracin de estandarizacin: .0945M HCl
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