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A plant virus is found to consist of uniform cylindrical particle of `150 Å` in diameter 5000 Å long. The specific volume of the virus is 0.75 `mLg^(-1)`. If the virus is considered to be a single particle, find its molar mass. |
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Answer» Volume of virus `= pir^(2)l` `=(22)/(7)=(150)/(2)xx(150)/(2)xx10^(-16)xx5000xx10^(-8)` `=0.884xx10^(-16)cm^(3)` `:.` Weight of one virus `=(0.884xx10^(-16))/(0.75)g` `=1.178xx10^(-16)g` `:.` Mol.wt.of virus `=1.178xx10^(-16)xx6.023xx10^(23)` `=7.095xx10^(7)` |
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