Asked by john
                when 5g of impure sample of CH4 is completely combusted, 9g of H2O was produced.what is the percentage purity of the sample of CH4
            
            
        Answers
                    Answered by
            MathMate
            
    Molecular mass of CH4=12+4=16
Molecular mass of H2O=16+2=18
Use the combustion equation:
CH4+2O2=CO2+2H2O
or 16 grams of CH4 should produce 2*18=36 grams of H2O.
If there are only 9g of H2O produced, use proportions to calculate the mass of CH4 that produced the H2O, and hence the percentage purity.
    
Molecular mass of H2O=16+2=18
Use the combustion equation:
CH4+2O2=CO2+2H2O
or 16 grams of CH4 should produce 2*18=36 grams of H2O.
If there are only 9g of H2O produced, use proportions to calculate the mass of CH4 that produced the H2O, and hence the percentage purity.
                                                    There are no AI answers yet. The ability to request AI answers is coming soon!
                                            
                Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.