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what is the ph of a solution that is 010 m in ethanoic acid and 050 m in sodium ethanoate kachccooh 18 x
a sample of neon gas has a volume of 25 l at 780 torr and 24 degrees c how many neon atoms are in the
for the titration of 250 ml of 0050 m sn2 with 0100 m fe3 using pt and sce electrodes what is the cell potential after
a binary ionic compound mxay crystallizes in a cubic structure that contains eight anions a entirely within its unit
a cell based on the reaction below has a standard potential of 042 v at 25degc if all of the species are at standard
lithium metal dissolves in water to yield hydrogen gas and aqueous lithium hydroxide what is final concentration of
which of the following is the most effective buffer system for a ph value of 1015 hco3- co32- ka 47 x 10-11 i have
what is the freezing point of a solution prepared by dissolving 39g of benzene c6h6 in 500g of cyclohexane fp for
butanoic acid ch3ch2ch2 cooh is a weak acid which of the following would be the ph of a 001 m butanoic acid the answer
a sample solution is to be analyzed for cu2 three 50 ml aliquots are removed to aliquot no1 is added nothing to no2 is
carbonic acid is a diprotic acid h2co3 with ka1 43 x 10-7 and ka2 48 x 10-11 calculate kb for the carbonate ion
what structure is responsible for the base peak of a cyclohexene and an unsaturated
gas a enters the tube passes through the contents of b and emerges as gas c if gas a is a mixture of carbon monoxide
trans-14-di-tert-butylcyclohexane exists in a normal chair conformation cis-14-di-tertbutylcyclohexane however adopts a
consider the following reaction at 298 k 2no g o2 g 2 no2 g a use information from your text calculate gdegrxn b
how do i know how many subshells each letter has s p d f and how do i know how many electrons can be found in each
torsional strain resulting from eclipsed ch bonds is approximately 42 kj 10 kcal mol and that for eclipsed ch and cch3
a 310 ml sample of gas is collected at a temperature of 37 degc and pressure of 720 mmhg what is its volume at 17 degc
when x amount of moles of glucose are dissolved in 560 x 101 ml of solution the molarity is 347 m what is
a gas occupies 123 liters at a pressure of 0050 atm what is the volume when the pressure is increased to 0080
fluorine gas at 300 k occupies a volume of 500 ml to what temperature should it be lowered to bring the volume to 300
if i have 310 g of lithium hydroxide dissolved to make 3 l of a solution what is the molarity of the
when gasses f2 and solid i2 are heated to high temperature the i2 sublimes and gasses iodine heptofluride forms 27x102
a certain liquid has a vapor pressure of 920 torr at 230 degc and 2040 torr at 450 degc calculate the value of hdegvap