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CBSE Class 11-science Answered

 A compound of lead has the following percentage composition: Pb = 90.66%, O = 9.34%. Calculate the empirical formula of the compound.(Pb =207,O=16 )
Asked by vikas.kochhar6 | 30 Aug, 2019, 03:58: PM
answered-by-expert Expert Answer
Steps to calculate empirical formula-
 
space space space Pb space space space space space space space space space space space space space space straight O space space 90.66 space space space space space space space space 9.34 fraction numerator 90.66 over denominator 207 end fraction space space space space space space space space space space fraction numerator 9.37 over denominator 16 end fraction 0.4379 space space space space space space space space space space 0.5837 Dividing space by space 0.4379 1 space space space space space space space space space space space space space space space space space space space 1.33 Multiplying space by space 3 3 space space space space space space space space space space space space space space space space space 3.9 After space taking space decimal space as space straight a space whole space number 3 space space space space space space space space space space space space space space space space space space 4 So space empirical space formula space equals Pb subscript 3 straight O subscript 4
Answered by Ravi | 30 Aug, 2019, 06:47: PM

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CBSE 11-science - Chemistry
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CBSE 11-science - Chemistry
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CBSE 11-science - Chemistry
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CBSE 11-science - Chemistry
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CBSE 11-science - Chemistry
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CBSE 11-science - Chemistry
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CBSE 11-science - Chemistry
 A compound of lead has the following percentage composition: Pb = 90.66%, O = 9.34%. Calculate the empirical formula of the compound.(Pb =207,O=16 )
Asked by vikas.kochhar6 | 30 Aug, 2019, 03:58: PM
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CBSE 11-science - Chemistry
2 L of NH3 at 273K and 1 ATM pressure neutralised 134ml of a solution of H2SO4.What is the normality of the acid?
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