How many moles of chloride ions are in 0.2550 g of aluminum chloride using alcl3 's molar mass of 133.34 g / mol: ?

Explanation:

It is known that number of moles is the amount of mass present in a given molar mass of the substance.

Mathematically,   No. of moles =

We are given that mass of is 0.255 g and molar mass of is 133.34 g/mol.

Therefore, number of moles of is calculated as follows.

        No. of moles =

                              =  

                              = mol

Since, there are three chlorine atoms present in one mole of . Therefore, moles of chlorine ions present in given 0.255 g will be calculated as follows.

              mol

            =

Thus, we can conclude that chloride ions are in 0.2550 g of aluminum chloride using 's molar mass of 133.34 g/mol.

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.