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A 22.6622.66 g sample of a compound contains 7.237.23 g of potassium, K,K, 6.566.56 g of chlorine, Cl,Cl, and oxygen, O.O. Calculate the empirical formula.Insert subscripts as needed.

Question

A 22.6622.66 g sample of a compound contains 7.237.23 g of potassium, K,K, 6.566.56 g of chlorine, Cl,Cl, and oxygen, O.O. Calculate the empirical formula.

Insert subscripts as needed.

check_circleAnswer
Step 1

The values are given as follows:

Unknown sample 22.66 g
amount of potassium(K)= 7.23 g
amount of chlorine (CI) 6.56 g
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Unknown sample 22.66 g amount of potassium(K)= 7.23 g amount of chlorine (CI) 6.56 g

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Step 2

The amount of oxygen (O) in the unknown sample can be evaluate as follows:

amount of oxygen (0) = 22.66 g -(7.23 +6.56) g
8.87 g
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amount of oxygen (0) = 22.66 g -(7.23 +6.56) g 8.87 g

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Step 3

The mole ratios of each element are determined by dividing each element mass with ...

1 mol K
7.23 g K. x 39.098 g K
moles of K
0.185 mol K
1mol Cl
moles of Cl 6.56 g C 35.45 g Ci
0.185 mol Cl
1 mol O
ох
moles of O 8.87 g O 16 g O
0.554 mol O
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1 mol K 7.23 g K. x 39.098 g K moles of K 0.185 mol K 1mol Cl moles of Cl 6.56 g C 35.45 g Ci 0.185 mol Cl 1 mol O ох moles of O 8.87 g O 16 g O 0.554 mol O

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