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37. Solving a chemistry problem
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last one 25.05.2023
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Uploaded: 18.03.2023
Content: 194.rar 19,75 kB
Refunds: 0
Uploaded: 18.03.2023
Content: 194.rar 19,75 kB
Product description
194. The intensity of the luminescence of a solution of 0.15 g of selenium was 0.25 conventional units. After adding a standard solution containing 50 μg of gallium, the luminescence intensity increased to 0.75 conventional units. Determine the gallium content in selenium (in%) if the luminescence intensity of the blank solution is 0.05 conventional units.
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