作者marucochiang (小桦)
看板Chemistry
标题[问题]古典分析的问题
时间Fri Jan 18 00:58:30 2008
For a saturated solution of CaF2 buffered at pH 3.0,
answer the following questions.
( Ksp = 3.2*10^(-11) for CaF2; Ka = 6.8*10^(-4) for HF )
(a) Write the pertinent equilibrium constant expressions for the solution.
(b) Write the mass balance equation.
(c) Find the solubility of CaF2 in the solution.
我自己想了很久，还是解不出来，请各位高手帮帮忙<(_ _)>
关於(b) 我觉得应该是 Ｃ（下标CaF2）= [CaF2] + [CaF+] + [Ca2+]
不知道这样写对不对 ＞ ＜
感谢大家！！！
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