What is the empirical formula of a compound composed of 30.5 g potassium (k) and 6.24 g oxygen (o)?

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11-10-2018
Chemistry

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What is the empirical formula of a compound composed of 30.5 g potassium (k) and 6.24 g oxygen (o)?

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zestyzen zestyzen · Answer 1 · 2018-10-12T03:27:49+02:00

zestyzen zestyzen

12-10-2018

K5O2

convert grams to moles, divide both by the smallest mole mass, multiply that until hole.

30.5 g K ÷ 39.10 = .78 mol
6.24 g O ÷ 16 = .39 mol
.78 mol ÷ .39 mol = 2.5
.39 mol ÷ .39 mol = 1
2.5 x 2 = 5
1 x 2 = 2
K5O2

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