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A detergent containing an unknown concentration of phosphate is analyzed using the standard addition method. Initially,...

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Chemistry

A detergent containing an unknown concentration of phosphate isanalyzed using the standard addition method. Initially, thissolution emitted an instrumental signal of 4.78 μA. An aliquot of10.0 ml of 3.12 M phosphate solution was added to the 80.0 mlsample. After this addition, a signal of 9.77 μA was measured.Calculate the initial concentration of phosphate in the originalsample of detergent.

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4.3 Ratings (699 Votes)
Let unknown concentration of phosphate C For the addition volume of sample 800 mL moles of phosphate already present unknown concentration of phosphate volume of sample moles of phosphate already present C 800 mL moles of phosphate already present 80C mmol    See Answer
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