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empirical formula?

when 0.500 grams of chromium metal is heated in excess iodine, 4.1505 grams of a chromium iodide salt is formed. Calculate the empirical formula for this salt.

2007-05-02 12:23:56 · 1 answers · asked by 41 1 in Science & Mathematics ➔ Chemistry

1 answers

Moles of Cr = 0.5/52 = 9.62 x 10^-3

Moles of I = 0.0287

Ratio of I to Cr = 3 approx

Thus formula is CrI3.

2007-05-02 20:53:57 · answer #1 · answered by ag_iitkgp 7 · 0⤊ 0⤋

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