CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Determine the no. of molecules in a drop of water which weighs 0.09 g.

Open in App
Solution

Given mass of H2O = 0.09g

The molar mass of H2O = 18g

Mole=given massmolar mass=0.0918=0.005 mole

Mole=no. of moleculesAvogadro number


Numberofmolecules=Numberofmoles×Avagadrosnumber

Numberofmolecules=0.005×6.022×1023

NumberofmoleculesofH2O=3.011×1021


Conclusive statement-

NumberofmoleculesofH2O=3.011×1021



flag
Suggest Corrections
thumbs-up
23
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Mole concept and Avogadro's Number
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon