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37. Solving a chemistry problem
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Uploaded: 18.03.2023
Content: 163.rar 68,09 kB
Uploaded: 18.03.2023
Content: 163.rar 68,09 kB
Product description
163. A sample of steel with mass m (g) was dissolved in a flask with a capacity of 50.0 ml. Aliquots of 20.0 ml each were taken into two 50.0 ml volumetric flasks. A solution containing 0.001000 g of titanium was added to one flask. Hydrogen peroxide was poured into both flasks and the solutions were brought to the mark. Calculate the mass fraction (%) of titanium in steel if the following optical densities Ax and Ax + st were obtained during photometry of solutions:
Option 163
m, g 0.4828
Ah 0.190
Ax+st 0.410
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