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Chemistry, 23.08.2019 04:10 vhife4901

Aseries of five calibration standards 25, 50, 75 and 100 mg/l potassium is required to be made from a 1000mg/l potassium standard solution. if the final volume of the calibration standards is 100 ml, what is the required volume of the 1000 mg/l potassium standard solution?

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