Question

The number of water molecules present in one drop of water weighing 0.08g

Answer 1

Answer:

Explanation:

given weight = 0.08g

molar mass of water= 18g

therefore, moles of water molecule = given weight/ molar mass

                                                            =0.08/18

                                                              =0.004 moles of water molecule

thus, number of molecules= no. of moles × avogadro number

                                             = 0.004 Na