Respuesta :

The mass percentage of LiCl,Li₂CO₃,LiNO₃ is 12.61%,38.16%,49.30% respectively.

Considering a 100g mixture, there would be 10.56 g Cl

The number of moles of Cl is 10.56/35.5=0.29746 mol

So the mass of lithium chloride in the mixture is 0.29746×42.394=12.61g

The number of moles of carbon is 6.198/12=0.5165 mol

Mass of lithium carbonate=73.89 ×0.5165=38.16g

Number of moles of nitrogen =10.01 / 14=0.715 mol

Mass of lithium nitrate =0.715×68.946 =49.296

Since the total mass of the mixture is 100g, the mass of each compound would be the percentage of that compound in the mixture.

Mass percentage of Lithium chloride=12.61 %

Mass percentage of lithium carbonate=38.16%

Mass percentage of lithium nitrate =49.30 %

What is mass percentage?

  • The mass percentage is defined as the concentration of an element in a compound or a component in a mixture.
  • The mass percentage can be calculated as the mass of a component divided by the total mass of the mixture, multiplied by 100%

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