. saccharin (c7h5no3s) is sometimes dispensed in tablet form. ten tablets with a total mass of 0.5894 g were dissolved in water. this solution was then oxidized to convert all the sulfur to sulfate ion, which was precipitated by adding an excess of barium chloride solution. the mass of baso4 obtained was 0.5032 g. what is the average mass of saccharin per tablet? what is the average mass percent of saccharin in the tablets?

Respuesta :

The moles are literally the molar mass of a solute and has the moles of solute and solvent of this solution as the average mass percent of saccharin in the tablets is 69%.

The sulfur (S) is oxidized to sulfate ions (SO₄²⁻). All the SO₄²⁻ ions are brought about with BaCl₂ answer withinside the shape of BaSO₄ (s).

The response is as follows-

  • BaCl₂ (aq) + SO₄²⁻ (aq) → BaSO₄ (s) + 2Cl⁻
  • So, this shows that after 1 mol of Saccharin (C₇H₅NO₃S) is dissolved, then 1 mol of BaSO₄ is brought about.
  • The quantity of moles of C₇H₅NO₃S is same to the quantity of moles of BaSO₄.
  • The quantity of moles of BaSO₄ = (mass of BaSO₄ obtained) / (molecular mass of BaSO₄) = (0.5032 g) / (233.39 g/mol) = 0.0022 moles
  • So, The quantity of moles of C₇H₅NO₃S = 0.0022 moles
  • Mass of Saccharin (C₇H₅NO₃S) = (quantity of moles of C₇H₅NO₃S) × (molecular mass of C₇H₅NO₃S) = (0.0022 moles) × (183.18 g/mol) = 0.403 g
  • The common mass percent of Saccharin (C₇H₅NO₃S) in drugs may be decided by-
  • [(mass of C₇H₅NO₃S) / (mass of tablets)] × 100 % = [ (0.403 g) / (0.5894 g) ] × 100 % = 68.37 %
  • 68.37n be rounded off as 69 %
  • So, the common mass percent of Saccharin (C₇H₅NO₃S) in drugs is 69 %.

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