一道有关pka和ph的英语化学题A weak acid is titrated with a strong base and during the titration the pH is plotted.On studying the titration "pH vs volume added" curve it is found that one third of the way to the equivalence point the pH was

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一道有关pka和ph的英语化学题A weak acid is titrated with a strong base and during the titration the pH is plotted.On studying the titration
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一道有关pka和ph的英语化学题A weak acid is titrated with a strong base and during the titration the pH is plotted.On studying the titration "pH vs volume added" curve it is found that one third of the way to the equivalence point the pH was
一道有关pka和ph的英语化学题
A weak acid is titrated with a strong base and during the titration the pH is plotted.On studying the titration "pH vs volume added" curve it is found that one third of the way to the equivalence point the pH was 5.55.What is the value of pKa for the weak acid?是不是用 pH = pKa + log10([A-]/[HA]) 这个公式呢?
简单翻译如下:用强碱滴定弱酸,当滴定到达完全反应(酸碱正好反应完)的三分之一时,此时的ph=5.55,那么这个弱酸的pka是多少?

一道有关pka和ph的英语化学题A weak acid is titrated with a strong base and during the titration the pH is plotted.On studying the titration "pH vs volume added" curve it is found that one third of the way to the equivalence point the pH was
是的,就是用这个公式.然后pKa应该是5.25

一道有关pka和ph的英语化学题A weak acid is titrated with a strong base and during the titration the pH is plotted.On studying the titration pH vs volume added curve it is found that one third of the way to the equivalence point the pH was 影响缓冲溶液的PH缓冲范围为A.pka~pka+1.B.pka-1~pka。C.pka。D.pka-1~pka+1 问下缓冲溶液的缓冲范围是不是和此时缓冲溶液的PH无关,只和pka有关吗 一道分析化学题计算滴定PH突越范围求解用0.1mol/L NaoH滴定0.1mol/L HAc(PKa=4.7)时的PH突越范围为7.9.7,由此可以推断用 0.1mol/LNaoH滴定PKa为 3.7的0.1mol/L某一元酸HR的PH突越范围或者解题思路能不能 缓冲溶液的缓冲能力最大时的pH值是?从 A.pKa+1 B.pKa C.pKa-1 D.任意pH 中选. 一道分析化学题1.0000mol/L的HAc溶液40.00ml与1.0000mol/L的NaOH溶液20.00ml混合,计算该混合溶液的PH(pKa=4.76) PKa值与PH值的关系 1、缓冲溶液的PH缓冲范围为A、pka~pka+1 B、pka-1~pka C、pka D、pka-1~pka+12、下列化合物中,在室温下与AgNO3/醇溶液反应,能产生沉淀的是A、氯乙烯 B、3-氯丙烯C、氯甲烷D、氯苯3、下列共价键极性最 怎样计算0.1M醋酸的PH,pka=4.75公式PH=pka+lg([A-]/[HA])但关键是[A-]/[HA]怎么算 要配制pH=7的缓冲溶液,宜选用的缓冲对是( )A,H2CO3 - NaHCO3(pKa=6.35) B,HAC - KAC(pKa=4.75)C,H2CO3- NaHCO3(pKa=6.37) D,H3PO4-KH2PO4(pKa=7.21) 一道化学题(与酸碱有关)分别在ph=1的酸溶液和ph=13的NaOH溶液中加入足量的Al,产生的氢气体积相同,下列说法正确的是A两溶液的体积相同,酸是弱酸B两溶液的体积相同,酸是多元强酸C酸是弱酸,酸 hydrocortisone phosphate有两个pKa值,求最大溶解度时的pHhydrocortisone phosphate 是一个含有磷酸盐酯的前药.它有两个 pKa 值,分别在1-3 和 6-7.在什么pH下它在水中溶解度最大?A.pH=8B.pH=6C.pH=4是用求离子化 第十三题,反应能进行的条件是什么?pka是什么,和ph有什么关系 如何用KH2PO4和K2HPO4配制pH=6.1的磷酸盐缓冲液?pka与pH有什么区别? 有关无机化学的问题:什么是pKa? 高三化学题下列溶液均处于25℃,有关叙述正确的是A 某物质的溶液pH pH小于等于pKa 酸碱指示剂颜色的变色点的PH值一般是 1,pka 2,pka+1