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calculate the ph at the equivalence point for the titration of 0210m methylaminech3nh2 with 0210m hcl the kb of
at 1 atm how much energy is required to heat 95 g of h2o at -20 degrees c to h2o at 137 degrees
sulfuryl chloride so2cl2 decomposes to sulfur dioxide so2 and chlorine cl2 in the gas phase the following data were
what is the ph of a sodium formate solution prepared by adding 0680 grams of sodium formate to 1000 ml of water at 250
during an experiment you will be required to prepare 100 ml of a 10 m solution of nano3 calculate the mass of nano3 to
at 30 c by how mush is a reactions activation energy decreased by the addition of a catalyst if the catalyst triples
you would like to measure the heat of neutralization of an acid with a base you mix 100 ml each of 057 m hcl and 057 m
ea for a certain biological reaction is 50 kjmol by what factor how many times will the rate of this reaction increase
what is responsible for the ph behavior of the following solution include a chemical equation in your explanation show
the activation energy of a certain reaction is 408 kjmol at 20 degrees c the rate constant is 0130 s-1 at what
a how would you prepare 5000 ml of a 0750 m solution using sulfuric acide from 180 m concentrated liquidb sodium
you add an excess of caoh2 to water maintained at a particular temperature stir until the solution is saturated filter
the sma compont of an element that cannot be sub-divided and still retain the chemical properiets of that element is
5000 ml of 0170m naoh is added to 585 ml of 0200 m weak acid ka26610-5 what is the ph of the resulting buffer haaq
calculate the change in ph when 800 ml of 100 m hclaq is added to 1000 ml of a buffer solution that is 0100m in nh3aq
a tlc plate showed two spots with rf values of 025 and 026 the plate was removed from the developing chamber the
draw andor describe everything that can assumedknown about the below peaks eg its a -ch2- attached to either a cc or co
write the expression for the equilibrium constant kc for the following thermal decomposition reaction be sure to
two beakers one containing 0010 m naclaq and the other containing 0010 m alcl3aq are placed inside a bell jar and
1 what is the definition of a strong acid compared to that of a weak acid2 is it possible to have a ph for a weak acid
consider a different reaction from the one conducted in lab when nitrogen gas n2 reacts with oxygen gas o2 the result
1 will a double replacement reaction occur if a potassium hydroxide solution is mixed with a leadii nitrate solution
compare the temperature change as a pure liquid is converter to a solid at its freezing point with the temperature
1 write a total ionic equation for the reaction if any of fecl2 solution with cu and for the reaction if any of fecl2