作者parcino (I WILL BE BACK ^^)
看板Chemistry
标题[高中] 请问苹果酸PH值
时间Wed Mar 12 09:55:46 2014
哈搂
因工作需要计算苹果酸的PH值
上网查苹果酸为2元酸
0.001%水溶液pH值为3.80
0.01%者pH值为2.80
1%者pH值为2.35
解离常数k1为4×10-4，k2为9×10-6
欲求PH5.8需要多少%的苹果酸
求解 感谢
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1F：推 wanderchang:理论跟实际还是有误差，滴定较实在 03/12 10:17
2F：推 kittor:there are always some uncertainties affecting the 03/12 12:25
3F：→ kittor:precions of measurements, it's necessary to calculate 03/12 12:26
4F：→ kittor:the answer by theory 03/12 12:26
5F：推 kittor:sorry for mistyping "precision" 03/12 12:30