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a buffer is prepared by dissolving honh2 and honh3no3 in some water write equations to show how this buffer neutralizes
calculate the millimoles of sodium hypochlorite used in the reaction 23 ml of a 525 solutionclorox compare this value
some salts can be prepared with either a cscl structure or a nacl structure which structure would you expect to be
what mass of ammonium chloride nh4cl must be added to exactly 430 102 ml of 010 m nh3 solution to give a solution with
bromothymol blue is a common acid-base indicator it has a ka equal to 16 x 10-7 its un-ionized form is yellow and its
lets abbreviate the fully protonated form of the diprotic amino acid alanine nh3-chch3-cooh as h2l find the ph and
calculate the volume of the naoh needed to completely neutralize the acid in the flask calculate the ph for a initial
what are some differences andor similarities in the type of inhibition caused by heat acid or base and heavy metal ions
given a 100 g sample of each of the following metals at 50 degrees c which would raise 100 g of water at 25 degrees c
constructs a galvanic cell that has a strip of iron metal immersed in a solution of 01m feno32 as one half-cell and a
a 100-ml solution of 00500 m agno3 was titration with 00250 m nabr in the cell scetitration solutionags find the cell
write balance equations for all the reactions that take place during neutralization when creating octyl acetate from
why should the 10 sodium bicarbonate solution be added slowly to the reaction mixture of acetic acid and n-octyl
naturally occurring chlorine is composed of 35cl and 37cl the atomic weight of chlorine is 35453 what are the
aluminum oxide al2o3 molar mass 10196 occurs in nature as a mineral called corundum which is noted for its hardness
in theory how many different elements in the ground state could have exactly 14 electrons in various s orbitals have
if the volume of the cylinder is 4500 ml and the pressure of the n2 in it is 33 atm temperature is 25ordmca how many
what is the equilibrium constant expression ka for the acid dissociation of nitrous acid hno2 the equation of interest
draw out the mechanism of the reaction not the reaction scheme for acetic acid and n-octanol that makes n-octyl acetate
give equations to show how sulfuric acid can convert 4-methylcyclohexene into a mixture of four isomeric c7h12
what is the molarity of a sodium hydroxide solution if 250 ml of this solution reacts exactly with 2230 ml of 253 m
in a qualitative analysis procedure a chemist adds hcl to an unknown group of ions and then saturates the solution with
why in this work-up procedure is ordinary not anhydrous ether used for rinsing the reaction ask and to provide a
write the net ionic equation for the reaction between aqueous solutions of calcium chloride and sodium
calculate the change in ph caused by adding 100 ml of 330-m hcl to 440 ml of each of the following solutionsnote that