Ionic solid `Na^(+) A^(-)` crystallise in rock salt type structure . 2.592 gm of ionic solid salt NaA dissolved in water to make 2 litre solution . The pH of this solution is 8. If distance between cation anion is 300 pm . Calculate the density of ionic solid (Pkw=13 Pka=13)
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The density of Ionic solid B^(+)A^(-) (Crystallises in rock salt type) is 4g/cc and the value of face diagonal unit cell is 600sqrt2 pm. If 1.296 g of an ionic solid B^(+)A^(-) (Salt of W.B. + S.A.) dissolved in water to make one litre solution, then its pH is ("T = 298K, "K_(b)" for BOH is "10^(-4). N_(A) = 6 xx 10^(23))
Calculate the pH of the following solutions. a. 0.37g fo Ca(OH)_(2) dissolved in water to give 500 ml solution b. 0.3 g of NaOH dissolved in water to give 200 ml solution c. 0.1825% HCl aqueous solution d. 1 ml of 13.6 M HCl is diluted with water to give 1 litre solution.
Calculate the pH of the following solution : (a) 2g of TlOH dissolved in water to give 2 litre of solution. (b) 0.3g of Ca(OH)_(2) dissolved in water to give 500mL of solution. (c) 0.3g of NaOH dissolved in water to give 200mL of solution. (d) 1mL of 13.6M HCl is diluted with water to give 1 litre of solution.
It is not possible to measure the atomic radius precisely since the electron cloud surrounding the atom doesnot have sharp boundary. One practical approach to estimate the size of an atom of a non-metallic element is to measure the distance between two atoms when they are bound together by a single bond in a covalent molecule and then dividing by two. For metals we define the term "metallic radius" which is taken as half the internuclear distance separating the metal cores in the metallic crystal. The vander Waal's radius represents the overall size of the atoms which includes its valence shell in a nonbonded situation. It is the half of the distance between two similar atoms in separate molecules in a solid. The atomic radius decreases across a period and increases down the group. Same trends are observed in case of ionic radius. Ionic radius of the species having same number of electrons depends on the number of protons in their nuclei. The size of iso electronic species -F^(-) , Na^(+) and Mg^(2+) is effected by
Consider an ionic solid that dissolves in water according to the equation: M_(n)X_(m(s)) nM_(aq)^(m+)n + mX_(aq)^(n-) . The equilibrium constant for this reaction, K _(sp)=[M^(m+)]^(n) [X^(n-)]^(m) is known as the solubility product of M_(n), X_(m) . The form of this euquilibrium is important in understanding effects such as the influence of pH, complex fomation and common ion cffect. Equilibrium constant in solution should be written correctly using activities and not concentrations. The difference between thesc quantities is large in concentrated ionic solutions and K_(sp) is quantitatively reliable as a guide of solubilities only for very dilute solutions, If solubility product of AB type salt is 4xx 10^(-10) at 18^(@) C, and M.W of AB is 143.5 g/mol. If ppt. of AB is washed with 5 lit water, loss in wt. of ppt. of AB is
