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a 500 g sample of liquid water at 250 degree c is mixed with 290 g of water at 45 degree c the final temperature of the
determine the ph of a solution that is 107 hcl by mass assume a density of 101 gml for the
calculate the ph at the equivalence point in titrating 0100 m solutions of each of the following with 0061 m
based on the following definitions of stereospecifc and stereoselective propose a reaction that is stereospecific but
how would one prepare 10ml of a 025m hcl solution if 1m hcl was available how much 1m hcl is needed how much distilled
magnesium phosphate precipitates from an aqueous solution does the entropy of the system increase or
the enthalpy of vaporization of ethanol is 3856 kjmol it has a boiling point of 35144 k what is the difference in
you have 5 l of an ideal gas at 25 ordmc and 5 bar are expanded to a final pressure of 100 bar assuming cv32 r
what is the formula and name for the following 1 kohhbr2 znagno33 knacl 4 hclnaoh 5 bacl2naso4 6
without using equations explain why delta s for a liquid or solid is dominated by the temperature dependence of s as
a sample of 15 g nawo4 dehydrate is dissolved in 25 ml di h2o 75g granulated zn was added then heated to 70 c 75 ml of
a what is the ph of a 552e-04 m solution of hcl report your answer to two places past the decimal pointb what is the ph
what is the ph change of a 0300 m solution of citric acid pka477 if citrate is added to a concentration of 0130 m with
mg oh2 is a sparingly soluble salt with a solubility productksp of 56110-11 it is used to control the ph and provide
what concentration of the barium ionba2 must be exceeded to precipitate baf2 from a solution that is 100 10 -2 m in
a buffer solution of volume 1000 ml is 0150 m na2hpo4aq and 0100 m kh2po4aq refer to table 1 for ka valuespka1 212
a 0050 m h2s solution contains 029 m nicl2 and 035 m hgno32 what ph is required to precipitate the maximum amount of
what is the molarity of a solution that contains 750g of kno3 dissolved in 0350l of
why is it that when you look into any type of light for a long period of time that blotches of black appear when you
what is the ph at the equivalence point in the titration of 0250m hx ka62x10-8 with 0250m
heat leaks into the interior compartment of a refrigerator at a rate of 100 cals if the air outside is 30 degc how many
what are the major products of reaction of each of the following with i propanal and ii propanone a lialh4 thf then
find the equilibrium concentrations of rm a and rm b for a 1 and b 2 assume that the initial concentration of rm a is
a 0040 m solution of a monoprotic acid is 14 percent ionized calculate the ionization constant of the