TÌM HIỂU VỀ CHUẨN ĐỘ ĐA AXIT - ĐA BAZƠ
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Ban đầu:<br />
H PO +NaOH → NaH PO +H O<br />
3 4 2 4 2<br />
1<br />
150<br />
Cân bằng: 0 0<br />
1<br />
150<br />
1<br />
150<br />
-<br />
Do đó pH sẽ tính theo tính theo ion H<br />
2 PO<br />
4<br />
theo cân<br />
bằng:<br />
H PO +H O<br />
⇌<br />
OH +H PO<br />
4<br />
K<br />
- -<br />
2 4 2 3<br />
H PO ⇌ H +HPO K<br />
- + 2-<br />
2 4 4 a2<br />
W<br />
a1
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