Question

CALCULATE THE NUMBER OF MOLECULES PRESENT IN A SPHERICAL DROP OF WATER HAVING A RADIUS OF 1MM IF DENSITY OF WATER IS 1G CM -VE CUBE

Answer 1

\[voloum of the water drop =(4/3)\Pi r\] the mass=density X voloum ; then no. of moles = (the mass of the drop /moleculare mass) ;then no.of molecules= no.of moles X avogadros no.