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Physical Chemistry
ca(oh)2 is a strong base which dissociates fully in water
ca(oh)2 to ca2+ and 2oH-
BUT ca(oh)2 is also a sparingly soluble salt which dissociate only partially ,and has ksp of about order of -6.
why are so?when discuss about acid-base ,it dissociate fully but when talk about salt ,it dissociate partially .why ?can any expert helping me .
ca(oh)2 to ca2+ and 2oH-
BUT ca(oh)2 is also a sparingly soluble salt which dissociate only partially ,and has ksp of about order of -6.
why are so?when discuss about acid-base ,it dissociate fully but when talk about salt ,it dissociate partially .why ?can any expert helping me .
Physical Chemistry
The percentage of an iron in a haemoglobin molecule is 0.335%. If a haemoglobin molecule consist of four iron( II ) ions, what is the relative molecular mass of haemoglobin ? [ Relative atomic mass of Fe is 55.3 ]
Physical Chemistry
eight electrons can freely move in a box with dimensions 4m x 1m x 1m. Sketch the occupied energy states and write the equation of the degenerated energies, including the quantum numbers, from the occupied states.
Physical Chemistry
calculate the pH of a 0.0105M solution of NaOH?
Physical Chemistry
why does Ce2(SO4)3 and Yb2(SO4)3 become less soluble as temperature increases?
Physical Chemistry
The crystal lattice structure of ionic compounds is responsible for which set of characteristic properties?
Physical Chemistry
what is polarcovalent bonding?
Physical Chemistry
Calculate how much chromium (as grams) can be electrodeposited in a one day when the current is 1.50 A. Solution contains Cr3+ ions.
Physical Chemistry
Calculate how thick layer of nickel is formed on a metal plate when a current of 100 m A is lead 30 mins through a solution containing Ni2+-ions. The area of the plate is 0.10 m2.
Physical Chemistry
Split the following chemical reactions into the half-reactions (reduction reaction and oxidation reaction)?
a) Zn(s) + CuSO4(aq) -----> ZnSO4(aq) + Cu(s)
b) 2AgCl(s) + H2(g) ------> 2HCl(aq) + 2Ag(s)
a) Zn(s) + CuSO4(aq) -----> ZnSO4(aq) + Cu(s)
b) 2AgCl(s) + H2(g) ------> 2HCl(aq) + 2Ag(s)
