52. Solving a chemistry problem

52. Solving a chemistry problem

1. When determining tin by the comparative method, 0.25 g of bronze was dissolved in a mixture of bronze acids and transferred to a flask with a capacity of 100 cm3. The atomic absorption of this solution and the 1 mg/mL Sn standard solution was 6.5 and 9.0 units. Find the mass fraction of tin in bronze.

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