Respuesta :

Answer

The empirical formula for this compound is SnI₄

Explanation

Given:

% composition: 19% tin and 81% iodine​

What to find:

The empirical formula for the compound

Step-by-step solution:

Assume we have 100 grams total of the substance.

Grams Sn: 19 g

Grams I: 81 g

Now, let's convert the number of grams of each element into moles below:

Moles Sn: 19 g/118.71 g/mol = 0.16 mol

Moles I: 81 g/126.90 g/mol = 0.64 mol

Finally, let's divide the number of moles of each element by the smallest number obtained:

Sn = 0.16/0.16 = 1

I = 0.64/0.16 = 4

Therefore the empirical formula for this compound is SnI₄

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