1.

0.66g of a compound gave 112ml of nitrogen measured at stp in dumas method the percentage of nitrogen in compound is

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ANSWER:

Dumas method is a procedure that is followed in analytical chemistry to determine an UNKNOWN chemical compound's molecular weight. This procedure was designed by  Jean-Baptiste Dumas BACK in 1826.

This method is profoundly more suitable for finding volatile ORGANIC compounds' molecular weight.

Percentage of Nitrogen:                                    

=\frac{Volume of Nitrogen at STP}{8 * Mass of the Compound}

=   \frac{112}{8* 0.66}

= 9.24 %

HENCE the Nitrogen percentage in the compound is 9.24%



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