Question

Give the no. of Molecules present in 0.18 gm of water.

Answer 1

the no. of molecules can be found by formula;   mass/molar mass into avogadros no. so;;;;;;;;;                                                                                                                                       0.18/18=0.01.. multiply it with (6.02into 10 raise to power 23) and the ans is..........(6.02 into ten raise to power 21)