
In a titrant experiment, 10 ml of solution consumed 25ml of standard solution to reach the equivalence point. This standard solution is prepared by dissolving 1.225g of in 250ml water. The concentration of the solution is closest to:
[Given: molecular weight of = 204g ]
A.0.25N
B.0.50N
C.0.10N
D.0.04N
Answer
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Hint: We need to remember that when two chemicals react with each other the formation of the product is going to depend on the energy required to convert chemical reactants into products. If the energy to convert reactants into products is just too high, then the reaction isn’t going to happen.
Complete step by step answer:
As we know that the ferric chloride may be a common compound of iron and chlorine during which iron possesses +3 oxidation state. From the question we’ve,
Given: V = 250 ml, = 10 ml, = 25 ml, =? m1 = 1.225g and M = 294g/ mol
We know that
When reacts with its ion gets converted into ion.
From the above equation,
No. of equivalent of = no. of equivalent of
Therefore,
Substituting the values of and 2 we get,
On substituting the known values we get,
On simplification we get,
Note:
-We have to remember that the IUPAC name of ferric chloride is Iron (III) chloride or iron trichloride. Apart from ferric chloride it’s several common names like molysite and Flores martis. It possesses various colours like as in its anhydrous form it appears black-green or purple while in its hydrous form it appears yellow solid.
-The formation of the products in a chemical reaction is going to depend on ionization energy of the chemicals. If the reaction needs the highest amount of ionization energy we’ve to use a catalyst to complete the reaction.
Complete step by step answer:
As we know that the ferric chloride may be a common compound of iron and chlorine during which iron possesses +3 oxidation state. From the question we’ve,
Given: V = 250 ml,
We know that
When
From the above equation,
No. of equivalent of
Therefore,
Substituting the values of
On substituting the known values we get,
On simplification we get,
Note:
-We have to remember that the IUPAC name of ferric chloride is Iron (III) chloride or iron trichloride. Apart from ferric chloride it’s several common names like molysite and Flores martis. It possesses various colours like as in its anhydrous form it appears black-green or purple while in its hydrous form it appears yellow solid.
-The formation of the products in a chemical reaction is going to depend on ionization energy of the chemicals. If the reaction needs the highest amount of ionization energy we’ve to use a catalyst to complete the reaction.
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