100 ml of a sample of water requires 1.96 mg of potassium dichromate in the presence of 50% H_(2) SO_(4) for the oxidation of dissolved organic matter in it. The chemical oxygen demand is 8x xx 10^(-1) ppm. The value of x is _____.

100 ml of a sample of water requires 1.96 mg of potassium dichromate i

1.	100 ml of a sample of water requires 1.96 mg of potassium dichromate in the presence of 50% H_(2) SO_(4) for the oxidation of dissolved organic matter in it. The chemical oxygen demand is 8x xx 10^(-1) ppm. The value of x is _____.
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