If NaCl is droped with `10^-3 mol%` of `SrCl_2`, what is the concentration of cation vacancies?

If 10 mL of 0.1 M aqueous solution of NaCl is divided into 1000 drops of equal volume , what will be the concentration of one drop ?

A sample of pure PCI_5 was introduced into an evacuated vessel at 473 K.After equilibrium was attained,concentration of PCI_5 was found to be 0.5 xx 10 ^(-1) mol L^(-1) . If value of K_c is 8.0 xx 10^(-3) ,f what are the concentrations of PCI_3 and CI_2 at equilibrium? PCI_5(g) hArr PCI _3(g) +CI_2(g) .

A sample of pure PCI_5 was introduced into an evacuated vessel at 473 K.After equilibrium was attained,concentration of PCI_5 was found to be 0.5 xx 10 ^(-1) mol L^(-1) . If value of K_c is 8.0 xx 10^(-3) ,f what are the concentrations of PCI_3 and CI_2 at equilibrium? PCI_5(g) hArr PCI _3(g) +CI_2(g) .

A pure silicon crystal has 4 xx 10^28 atoms m^-3 . It is droped by 1ppm concentration of antimony. Calculate the number of electrons and holes n_i = 1.2 xx 10^16//m^3

The half life of first order reaction is 990 s. If the initial concentration of the reactant is 0.08 mol dm^3 , what concentration would remain after 35 minutes?

Bromine monochloride,BrCl decomposes into bromine and chloring and reaches the equlibrium. 2BrCI(g) hArr Br_2+CI_2(g) for which K_c = 32 at 500 K. If initially pure BrCI is present at a concentration of 3.3 xx 10 ^(-3) mol L^9-1 ,what is its molar concentration in the mixture at equilibrium?

A 500 g toothpaste sample has 0.2 g fluoride concentration. What is the concentration of F^(-) in ppm ?

What is the action of concentrated H_2SO_4 on HBr and HI