Water molecules is very polar. Polar end of molecule attracts opposite charges on another water molecules (acts like magnet). How will you explain this property of water with refrence to upward movement of water? Comment on the upward move-ment of water given the intermolecular hydrogen bonding in water.

How many molecules are present in 9g of water ?

How many water molecules are present in washing soda?

Will the ascent of sap be possible without the cohesion and adhesion of water molecules comments.

what are two kinds of interaction of water molecules that allow water to travel upwards in plant?What are other physical processes aid in water transport to top of the trees.

Water moves up against gravity and even for a tree of 20m height, the tip recives water within two hours. The most important physiological phenomenon which is responsible for the upward movement of water is ……………

What is maximum no. of hydrogen bonds in which a water molecule may participate is :

How many water molecules are involved in coordination in CuSO_4. 5H_2O ?

In water molecule the ratio by mass in which hydrogen and oxygen react is 1 : 8, Calculate the ratio by number of atoms in water molecules.

In an experiment to estimate the size of a molecule of oleic acid 1mL of oleic acid is dissolved in 19 mL of alcohol. Then 1 mL of this solution is diluted to 20 mL by adding alcohol. Now 1 drop of this diluted solution is placed on water in a shallow trough. The solution spreads over the surface of water forming one molecule thick layer. Now, lycopodium powder is sprinkled evenly over the film and its diameter is measured. Knowing the volume of the drop and area of the film we can calculate the thickness of the film which will give us the size of oleic acid molecule. Read the passage carefully and answer the following questions : How will you calculate the volume of n drops of this solution of oleic acid ?