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if 1020g of khc8h4o4 20423gmol is completely neutralized with 0200 m koh what volume of potassium hydroxide is
calculate the potential of the following two half- cells that are connected by a salt bridge a galvanic cell with two
an experiment shows that a 248ml gas sample has a mass of 0433g at a pressure of 745 mmhg and a temperature of 28
a spectrophotometer has a meter that gives a reading directly proportional to the amount of light reaching the detector
calculate the potential of a zinc electrode immersed in 00100m in znnh34 2 and 025m in nh3 b4 for znnh34 2 is
how many seconds would it take to deposit 0500 g of ni metal on an electrode by passing a 300 amp current through a
how many grams of cobalt metal can be formed if a 200 amp current is passed through a solution of co2 for a period of
what is the minimum voltage needed to produce a reaction in the electrolysis of copperii sulfate using inert electrodes
consider the titration of 300 of 0035 with 0030 calculate the after the following volumes of titrant have been
berylliumii forms a complex with acetylacetone 1662gmol calculate the molar absorptivity of the complex given that a
which of the following will change the equilibrium constant a changing temperature b nothing changes the value of keq
the rate of a chemical reaction is found to double when the temperature is raised from 298k to 308k determine the
nuclides below the valley of stability can become more stable through which of the following processesa beta emissionb
in which of the following aqueous solutions would you expect agcl to have the lowest solubility a pure h2o b 0020 m
which compound in each pair has a higher melting point can you explain why or show how you got the answera rbi or kib
1 calculate g and k for the following reactions use g -nfe and the nernst equationa 2fe3 2i - --gt 2fe 2 i2b i2
compare and contrast the following size exclusion chromatography and ion exchange chromatography points to include
what will the following peptides look like structurally at ph 1 ph 7 ph 12 you will draw 3 structures for eacha
when the three elements p cl and as are arranged in order of increasing atomic radius which is the correct ordera cl p
if silicon atomic number 14 combines with chlorine atomic number 17 what is the most likely formula based on your
the first four ionization energies of an element x are 058 182 274 and 1158 mjmol what is the most likely formula for a
arrange the elements li be ne and ar in increasing order of the energy required to remove an electron from their
in what part of the periodic table are the smallest ionization energies for the first electron founda upper leftb lower
how much energy is liberated at constant pressure if 0894g of hcl reacts with excess calcium