Answer to Question #322326 in General Chemistry for carlington

Question

Question 2

The silver concentration in a sample of photographic waste was determined by AAS. Table 3 shows the results obtained. Is the calibration data linear? Plot the calibration curve. [25 Marks]

Table 3: Determination of silver concentration by AAS

Added Ag: µg added per ml of original solution 0 5 10 15 20 25 30

Absorbance 0.32 0.41 0.52 0.60 0.70 0.77 0.89

Answer 1

It is linear, because a coefficient of correlation of linear function is 0.9976