Mathematics · Concentration Terms
A solution of Gallic acid in ethanol was prepared by dissolving 0.05 mg of gallic acid in enough solvent to make 250 mL of solution (w/v). The concentration of this solution in parts per million (ppm, mg/L) is ______________.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 10.50 ppm
- 20.20 ppm✓
- 31.00 ppm
- 40.05 ppm
Correct answer
0.20 ppm
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