CHEMICAL ENGINEERING

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1. Calculate the concentration of the Aq (silver) standards prepared as follows: Stock solution: 636.9mg of AgNO3 of analytical standard quality are weighed and dissolved in 500mL of deionized water. Intermediate standard solution: 25mL of the stock solution is taken and brought to 500mL... Test standard solution: the following are taken from the intermediate solution volumes and are brought to 50mL with deionized water: 1,2,5,10 and 15mL. A calibration curve is prepared with these standards, obtaining the following equation: Y=0.0374x+0.0053 A liquid sample is analyzed from which 2mL are taken that after the appropriate treatment they are brought to 25mL. The absorbance of this test sample is 0.435 Calculate the concentration of each of the prepared solutions. 'Calculate the concentration of the test sample