考前請教環境化學問題 - 考試
By Carolina Franco
at 2015-12-05T10:36
at 2015-12-05T10:36
Table of Contents
1. 計算COD耗氧量時,得到重鉻酸鉀的使用量後,怎麼換算成耗氧量?
EX: 0.1M重鉻酸鉀耗用10ml,COD多少?
2. 如何計算酸雨pH=5.6?
(網上搜尋的算法要記好多數值...)
3. 5mg磷酸鹽要用多少FeCl3混擬?
(為何要用過量混擬劑?)
4. 弱電解質離子強度計算?
一般用1/2(濃度*氧化數^2),那得知平衡常數的弱電解質呢?
5. ppm=mg/m3?! 以下是我的想法
ppm=10^-6
ml/m3=10^-6
當水溶液d=1, ml/m3=g/m3
那 mg/m3=10^-9 ???
6. 逕流計算 1/360CIA(m^3/sec)
1/360<小時換成秒
I(mm/hr)
A(公頃=10000m^2)
mm*10000m^2不是=10m^3嗎?
這樣不就多10?
麻煩各位大大先進們解答了><
--
EX: 0.1M重鉻酸鉀耗用10ml,COD多少?
2. 如何計算酸雨pH=5.6?
(網上搜尋的算法要記好多數值...)
3. 5mg磷酸鹽要用多少FeCl3混擬?
(為何要用過量混擬劑?)
4. 弱電解質離子強度計算?
一般用1/2(濃度*氧化數^2),那得知平衡常數的弱電解質呢?
5. ppm=mg/m3?! 以下是我的想法
ppm=10^-6
ml/m3=10^-6
當水溶液d=1, ml/m3=g/m3
那 mg/m3=10^-9 ???
6. 逕流計算 1/360CIA(m^3/sec)
1/360<小時換成秒
I(mm/hr)
A(公頃=10000m^2)
mm*10000m^2不是=10m^3嗎?
這樣不就多10?
麻煩各位大大先進們解答了><
--
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考試
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at 2015-12-07T21:47
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