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1. The concentration of ammonium sulphate in soil can be determined by dissolving the salt and after filtering, adding acidified barium chloride to the solution. The insoluble barium sulphate (BaSO4) that forms is separated, dried and then weighed. In an experiment to determine the concentration of ammonium sulphate in soil, it was found that 1 kg of soil yielded 0.016 g of BaSO4. 1.) calculate the moles of BaSO4 in 0.116g​

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Eduard22sly

The number of mole present in 0.116 grams of barium sulphate, BaSO₄ is 0.0005 mole

Description of mole

The mole of a substance is related to it's mass and molar mass according to the following equation:

Mole = mass / molar mass

How to determine the mole of BaSO₄

From the question given above, the following data were obtained:

  • Mass of BaSO₄ = 0.116 g g
  • Molar mass of BaSO₄ = 137 + 32 + (16×4) = 233 g/mol
  • Mole of BaSO₄ =?

Mole = mass / molar mass

Mole of BaSO₄ = 0.116 / 233

Mole of BaSO₄ = 0.0005 mole

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