Specific gravity of mixture

 

If the specific gravity of the mixture is 0.781, what are the w/v concentrations of lactic acid, salicylic acid, and trichloroacetic acid in the mixture?

  • Lactic Acid 4g
  • Salicylic acid 5g
  • Trichloroacetic Acid 2g
  • Flexible Collodion q.s. ad 100g

Answer:

w/v concentrations of lactic acid, salicylic acid, and trichloroacetic acid are 3.1, 3.9 and 1.6, respectively.

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