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at a certain temperature the ksp for caco3 is 48 x 10-9 the solubility of caco3 in grams per liter isa 48 x 10-9 glb 69
a buffer is prepared by mixing 500 ml of 150 m ch3cooh with 250 ml of 100 m ch3coona what is the ph of the buffer
a 500 ml solution of nh3 was titrated with 0100 m hno3 the volume of titrant required to reach the equivalence point
0460 mol of nocl is placed in a 100 l reaction vessel at 700 k and after the system comes to equilibrium the
a 500-ml solution containing ni2 and zn2 was treated with 250 ml of 0045 2 m edta to bind all the metal the excess
a 100 l tank contains 0350 atm of nh3 g at 221 c if the entire contents of the tank are dissolved in 2900 ml of water
a certain weak base which we will represent by the symbol b has a basicity constant kb 37 x 10-4 at 25 c the ph of a
the temperature of water decreases on the dissolution of nh4no3 from this observation we can conclude that the solution
what is the keq for a chemical reaction which has eo of 050v and a 3 electron
barium nitrate is a not very soluble nitrate calculate the ksp at 25 degrees from the following deltagsba2
a solution is prepared by adding 500ml of 0050m hcl to 150ml of 010m hno3 calculate the concentrations of all of the
1040 carbon steel is a medium carbon steel determine the applied stress at failure for a crack of length 5mm using the
for a particular redox reaction no2- is oxidized to no3- and ag is reduced to ag complete and balance the equation for
electrons with a maximum ke of 300 ev are ejected from a metal surface by ultraviolet radiation of wavelengh 150 nm
the thyroid horone thyroxine has the chenical formula c15h11iodine4no4 how many milligrams of c15h11iodine4no4 can be
there are approximately 260x1013 red blood cells with atotal of 290g of iron on the average how many iron atoms are
a chemical is placed in a beaker containing 20g of soil and 500 ml water at equilibrium the chemical is found in the
a vitamin c tablet containing 250 mg of ascorbic acid h2c6h6o6 is dissolved in water to make 1000ml solution calculate
what volume of 050 m hno2 and 050 m nano2 must be mixed to prepare 100 l of a buffered solution at a ph of 350 present
the ph of an aqueous solution containing aniline c6h5nh2 and its salt anilinium chloride c6h5nh3cl is 420 the
a the acid dissociation constant ka for phenol c6h5oh is 1068x10-10 calculate the ph of a 075 m c6h5oh solutionb
the average family of four uses 400 gallons of water per day calculate the average number of liters per second they use
in the reaction 2a -gt x y the initial concentrations are all 0600 m if the equilibrium constant is 120 x 106 what are
the quantity of antimony in an ore can be determined by an oxidation - reduction titration with an oxidizing agent the
what temperature is required to contain gas in a 525 ml flask at 123 atm if it originally occupied 555 ml at 755mmhg