August 12, 2024, 01:43:17 PM
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### Topic: How to calculate amount of dichloroisocyanuric acid for standard for free Cl  (Read 1162 times)

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#### udo.sopon

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##### How to calculate amount of dichloroisocyanuric acid for standard for free Cl
« on: June 10, 2024, 11:51:50 AM »
I've trying to calculate the free chlorine (Cl-) standard solution from dichloroisocyanuric acid sodium salt. According to Merck. The answer is 1.850 g in 1000 mL of water for free chlorine concentration as 1000 mg/l.

I try to calculate and get answer 1.805.

255.989 g/mol of total / 2* (35.45 g/mol of Cl) *2(ratio of mol) = 1.805 g

Could any one suggest me for correct calculation please? Thank in advance.
« Last Edit: June 10, 2024, 12:45:20 PM by udo.sopon »

#### Hunter2

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##### Re: How to calculate amount of dichloroisocyanuric acid for standard for free Cl
« Reply #1 on: June 10, 2024, 12:34:07 PM »
Mathematically

1 g/l Cl2/ 71 g/ mol = x g/l/256 g/ mol

x = 3,6 g/l means the double of the number what you got.

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