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| pH | c(CrO42-) | c(HCrO4-) | c(Cr2O72-) | c(H2CrO4) |
| 4 | 0.0003 | 0.1030 | 0.4480 | 0 |
| 6 | 0.0319 | 0.0899 | 0.4370 | 0 |
| 7 | 0.2645 | 0.0860 | 0.3195 | 0 |
| 9 | 0.8960 | 0.0031 | 0.0004 | 0 |
A.¸õËáµÄµÚÒ»²½µçÀë·½³ÌʽΪ£ºH2CrO4 = H+ + HCrO4-
B.¸Ã¸õËáÈÜÒºµÄÎïÖʵÄÁ¿Å¨¶ÈԼΪ1.00 mol/L
C. pHÔ½´ó£¬HCrO4-Ô½ÈÝÒ×µçÀë³öCrO42-
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