Find out the concentration of following solution in terms of Molarity and Normality (a)11.2g% KOH (b)21.2g% Na2CO3

Q. Which of the following concentration terms temperature independent ?
(I) Molarity (II) Molality
(III) Normality (IV) Mole fraction

Q. When $25$ mL of $0.1M$ $AgN{O}_3$ is mixed with $50.0$ mL of $0.08M$ $N{a}_{2}C{O}_3$ solution, then the molar concentration of $N{a}_{2}C{O}_3$ in the solution is $x\times {10}^{-2}M$. Here $x$ is:

Q. In a solution, the concentration of $CaC{l}_2$ is $5M$ and that of $MgC{l}_2$ is $5M$. The specific gravity of solution is $1.05$ . Calculate the concentration of $C{l}^{-}$ in the solution in terms of its molarity.

Q. 25.3 g of sodium carbonate $N{a}_{2}C{O}_3$ is dissolved in enough water to make 250 mL of solution .If sodium carbonate dissociates completely molar concentration of sodium ions $N{a}^{+}$ and carbonate ions are respectively (molar mass of $N{a}_{2}C{O}_3=106gmo{l}^{-1}$ )?

Q. The concentration of a solution can be expressed in molarity, normality, formality and molality. Among them, which mode of expression is the most accurate for the all conditions?