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Analysis of many gaseous compounds of phosphorus shows that 1 litre of any gas at NTP never contains less than 1.384 g of phosphorus Again one litr eof phosphorus regarding approximate atomic mass. Molecular mass and atomicity of phosphorus from the above results? |
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Answer» Solution :ONE gram mole of any gas OCCUPIES volume at NTP=22.4 litre. One gram mole of any gas does not CONTAIN less than `1.384xx22.4=31g` of phosphorus. So, according to Cannizzaro's concept, the approximate atomic mass of PHOSPHOROUS should be 31. Mass of one gram mole of phosphorus vapour `=5.536xx22.4=124` Atomicity of phosphorus `=("Mol.mass")/("At.mass")` `=(124)/(31)=4` |
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