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One volume of hydrogen combines with sulphur to produce one volume of a gas (A). If the vapour density of (A) be 17. what is its molecular formula? The volumes have been measured under same temperature and pressure. |
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Answer» Solution :Hydrogen `rarr` A 1 vol1 VOL N molecules n molecules 1 molecule 1 molecule 2 ATOMS 1 molecule. So, the formula of `A=H_(2)S_(x+)` where x is the number of sulphur atoms. Mol. Mass of `A=2xx1+x xx 32=2V D=2xx17=34`. or `2+32x=34` or `x=1` Hence, the molecule formual of A is `H_(2)S`. |
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