How many grams of lithium chloride can be produced from 14.3 g of lithium chlorate when it decomposes into lithium chloride and oxygen gas?

Respuesta :

6.7 grams of lithium chloride will be produced.

Explanation:

Lithium chlorate is LiClO₃ and lithium chloride is LiCl. The reaction is,

2LiClO₃ = 2LiCl +3O₂.

So here, 2 moles of lithium chlorate produces 2 moles of lithium chloride.

Or, one molecule of lithium chlorate will produce one mole of lithium chloride.

Molecular weight of lithium chlorate =[tex]6.9 + 35.5 + 16\times3[/tex] = 90.4.

So, 14.3 grams of lithium chlorate has 0.16 moles of lithium chlorate.

Thereby, moles of lithium chloride produced is 0.16 moles.

Molecular weight of lithium chloride = [tex]6.9+35.5[/tex] = 42.4 grams.

So weight of lithium chloride produced = [tex]42.4 \times 0.16[/tex] = 6.7 grams.

Thus, weight of lithium chloride produced will be 6.7 grams.

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