1. Write the definition of the following topics :
a. Solution b. Titration c. Indicator d. Normal solution
e. pH
2. Write the name of two indicator and differentiate them in different pH.
3. What do you mean by Primary standard substance? Give two example.
4. Why Molarity and Normality is equal in HCL?
5. What is Hardness ? Which cations are mainly responsible for water Hardness?
1. “Standardization of Hydrochloric Acid solution by the standard Sodium Carbonate solution”. Where the concentration of Sodium Carbonate solution is 0.1 Normal.
a) Write the Objective of this experiments.
b) Write the name of apparatus required to do this experiments.
c) Write the name of chemicals required in this experiments and write at least two sentence about them (Chemicals description).
d) What is Normality? What do you understand by 0.1 N Sodium Carbonate solution?
e) How much grams of Sodium Carbonate will be needed to make 1) a desi Molar solution, 2) a semi Molar solution of 250 cm3 Sodium Carbonate solution?
2. “Determination of Ferrous Ion from Ferrous salt solution by the standard Potassium permanganate solution “. Where concentration of potassium permanganate solution is 0.1 Normal.
a) Write the Objective of this experiments.
b) Write the full reaction of the above experiments and also write the name of chemicals required in this experiments.
c) “we need not add extra indicator”. Why explain with the help of reaction.
d) Write about 1) Solution 2) Redox Reaction 3) Primary standard solution
4) Indicator
e) If 4 ml KMnO4, 0.1N solution is needed to oxidize 10 ml of Fe2+ solution dissolved in dilute H2SO4 then determine the amount of Fe2+ ion present per liter solvent. (Atomic weight of Fe2+ is 55.85g).