Acid etilen diaminotetra acetic (EDTA) ký hiệu H4Y có các pK1 g pK4 lần lượt như sau: 2.0; 2.7; 6.3; 10.3. Tính pH của dung dịch khi Ca = 0.01 M.
Tính nồng độ cân bằng của tất cả các cấu tử với Ca = 0.01M ở pH = 10

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Ted and emily played a mixed doubles tennis match against jack and brenda. in the second match. ted and brenda played against jack and emily. which type of chemical reaction does the situation demonstrate?

A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.