How many molecules are there in 65 g of silver nitrate (agno3)?

Answer : The number of molecules present in 65 g of silver nitrate are,

Solution : Given,

Mass of silver nitrate = 65 g

Molar mass of silver nitrate = 169.87 g/mole

First we have to calculate the moles of silver nitrate.

Now we have to calculate the number of molecules present in silver nitrate.

As, 1 mole of silver nitrate contains number of molecules

So, 0.382 mole of silver nitrate contains number of molecules

Therefore, the number of molecules present in 65 g of silver nitrate are,

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.