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what are the net ionic equations for 1 potassium fluoride and ammonium chloride and 2 sodium hydrogen sulfite and
at a certain temperature the following reactions have the constants showns s o2 g so2 g keq 42 x 1052s s 3o2 g 2so3
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a 218 g sample of ethanol c2h5oh is burned in a bomb calorimeter according to the following reaction if the temperature
how many moles of hf ka 68 x 10-4 must be present in 0200l to form a solution with a ph of
what is the ph to nearest 001 ph unit of a solution prepared by mixing 520 ml of 0125 m hf and 780 ml of 00465 m
consider the following species ca br1- fe2 cu co3 li list the oxidizing agents list the reducing agents some could be
a 0879g sample of a cacl22h2ok2c2o4h2o solid salt mixture is dissolved in 150ml of deionized water previously adjusted
1000 ml of 0400 m cocl2aq is mixed with 1000 ml of 1600 m naoh determine the moles of precipitate which form and the
a racemic product mixture is produced when z-4-ethyl-4-octene is subjected to chlorohydrin formation conditions cl2 h2o
a 1000 ml aliquot of weak base is titrated with hcl the equivalence point is reached after 1721 ml of 04332 m hcl has
calculate the ph at the equivalence point for the titration of 10 m ethylamine by 10 m perchloric
the volume of 0162 mol of helium gas at 301 c is increased isothermally from 227 l to 543 l assuming the gas to be
calculate the ph during the titration of 40 ml of 01m hcl with 01m naoh solution after the following additions of basea
explain why the fluoride ion of the terabutylammonium flouride is more nucleophilic than the fluoride ion of sodium
find the ph of the equivalence points and the volume of 00372 m naoh needed to reach it in titrations ofa 422 ml of
a what is the ph to nearest 001 ph unit of a solution prepared by mixing 520 ml of 0631 m hcl and 630 ml of 0723 m
two buffered solutions buffered solution 1 consists of 50 m hc2h3o2 and 50 m nac2h3o2 buffered solution 2 is made of
if 250 ml of 0451 m hno3 solution is titrated with 0451 m naoh calculate the ph of the solution after each of the
how many moles of h3o must be added to 482 ml of a solution to adjust the ph from 880 to 556 use e notation and 3
draw the structure of the intermediate hydroxyketone formed by the transfer of one hydride to benzil is the
most of the alkali halides exhibit the rock salt structure shared by nacl using the ionic radii li 76pm f 133pm k 138pm
35 grams of salicylic acid reacts with an excess amount of acetic anhydride what is the theoretical
show the orbital-filling diagram for nitrogen stack the subshells in order of energy with the lowest-energy subshell at