A certain mineral used as a food preservative contains 8.242 % potassium, 5.687% aluminum, 5.099% hydrogen,...

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Chemistry

A certain mineral used as a food preservative contains 8.242 %potassium, 5.687% aluminum, 5.099% hydrogen, 67.45 % oxygen and13.52 % sulfur. What is the empirical formula for thiscompound?

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4.5 Ratings (624 Votes)

assume 100 % = 100 grams

K = 8.242 g

Al = 5.687 g

H = 5.099 g

O = 67.45 g

S = 13.52 g

find the mole ration and then divide the smallest possible value and then calculate the empirical formula is as follows

mole ratio =>

=> KÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â AlÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â HÂ Â Â Â Â Â Â Â Â Â Â Â Â OÂ Â Â Â Â Â Â Â Â Â Â Â Â S

=> (8.242/39.089) (5.687/26.98) (5.099/1)Â Â Â (67.45/16)Â Â Â Â (13.52/32)

=> 0.2108Â Â Â Â Â Â Â Â Â Â Â Â 0.2108 Â Â 5.099 Â Â 4.2156 Â Â Â 0.4225

=> (0.2108/0.2108) (0.2108/0.2108) (5.099/0.2108) (4.2156/0.02108) (0.4225/0.2108)

=>Â Â Â 1Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 1Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 24 Â Â 20 Â Â 2

the empirical formula is as follows

=> K₁Al₁H₂₄O₂₀S₂

answer => KAlH₂₄O₂₀S₂Â Â Â Â

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A certain mineral used as a food preservative contains 8.242 % potassium, 5.687% aluminum, 5.099% hydrogen,...

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70.2K

Verified Solution

Question

Chemistry

A certain mineral used as a food preservative contains 8.242 %potassium, 5.687% aluminum, 5.099% hydrogen, 67.45 % oxygen and13.52 % sulfur. What is the empirical formula for thiscompound?

Answer & Explanation Solved by verified expert

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