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background infoyou used 105g of solid and it required 1785ml of 100m hcl to titrate to the endpointthe number of moles
calculate the molarity m of hcl used in the titration of a 02239g sample of sodium carbonate that required 3901ml of
if 186 ml of 0800 m hcl solution are needed to neutralize 500 ml of a household ammonia solution what is the molar
a 2394mg sample of a drug designed to treat malaria was run through a series of reactions to convert all the nitrogen
calculate the ph ofnbsp560 ml of anbsp0483-m solution ofnbsphydrofluoric acidnbspbefore and after the addition
trying to determine mass of one atom of each element including and excluding electrons i was given the mass of proton
calculate the ph of an aqueous solution that contains 0135 m potassium hydrogen phosphate and 0199 m potassium
calculate the ph of 100 l of anbsp0286nbspmnbspacetic acidnbspsolution before and after the addition ofnbsp0472nbspmol
explain in detail why atomic radii do not increase uniformly with increasing atomic number give specific examples in
cubane c8nbsph8nbsps is a cubic-shaped hydrocarbon with a carbon atom at each corner of the cube cubane is very
what is the single most important application of the combustion reaction in our
how many dozen molecules of xenon tetroxide can you make if you mix 450 dozen molecules of oxygen and 350 dozen atoms
suppose scientists discover a new element with atomic number 151 that they give the symbol a because there is no
part 1a buffer solution containsnbsp0318nbspmnbspnah2po4nbspandnbsp0241nbspmnbspna2hpo4 determine the
use daltons atomic theory to explain what is happening to the carbon atoms when a diamond is burned and to oxygen and
in the making stock solutions from solids problem make a 100 ml solution that is 10 m of the cl- ion using nacl and
what is a polyatomic molecule what is a diatomic
a find the distance to a sun-like star l38x1026watts whose apparent brightness at earth is 10 x10-10wattm2b you measure
what is the daughter nucleus nuclide produced when 213bi undergoes alpha decay i need it in 4 b format for
which of the following yields an acidic solution when dissolved in water more than one answer all numbers are
a sample of solid copper is heated with an electric coil if 582 j of energy are added to a 127 gram sample and the
an automobile engine provides 634 j of work to push the pistons and generates 2107 j of heat that must be carried away
what would be some characteristics of a polymer formed in an auto accelerated
the number of unpaired electrons in a compound can be determined by its magnetic behavior in this experiment the
part 1 what is the ph of a 018 m solution of methylammonium nitrate ch3nh3no3 kb for methylamine ch3nh2 is 50 times