Doubled Multiple Law (Dalton’s Law)
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Doubled multiple law related to a pair of element can form more than one compound.
Example : Carbon atom and Oxygen atom can form CO2 and CO.If the mass one of the element in two compounds is same, so that differing masses in other element in this compound is a simple integer. It’s call Doubled Multiple Law ( Dalton’s Law)
Example Problem 1 :a. Sulfur (S) and Oxygen (O) form two kinds of compounds. The percent of mass in two compounds is 50 % and 40 %. Is this statement appropriate with Dalton’s Law ?
Solution :Compound I contain 50 % sulfur, so the mass of oxygen is 50 %
Compound II contain 40 % sulfur, so the mass of oxygen is 60 %
Differing mass between S : O in compound I = 50 : 50 = 1 : 1
Differing mass between S : O in compound II = 40 : 60 = 1 : 1,5
Differing mass between S : O in compound II = 40 : 60 = 1 : 1,5
The compound appropriate with Dalton’s Law
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chemistry education
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