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a 300 ml sample of a diprotic acid is titrated with 250 m koh if 700 ml of the base is needed to reach the equivalence
based on your knowledge of explain how mo diagrams are constructed for the 2nd row diatomics construct and mo diagram
state a chemical equation for the synthesis of ethyl 2-methylpropanoate utilize structural formulas must include all
if the empirical formula of a certain hydrocarbon is ch2 when 0131 mole of the hydrocarbon is entirely combusted with
explain is there a relationship between the presence or absence of solution color and the ionic radius of the metal
explain the freezing point depression constants of the solvents cyclohexane as well as naphthalene are 201 degree cm
depict the reaction equation for the reduction of benzophenone into benzhydrol diphenylmethanol facilitated by nabr4
if a liquid fuel mixture contains 3135 c6h14 hexane 1470 c7h16 heptane as well as the rest octane
depict the complete 3-step mechanism for the hydroboration of 1-octene this means drawing out the three repetitive
suppose in the titration of an impure sample of khp it was found that 360ml of 100m naoh was needed to react completely
if 500ml of naoh solution is needed to react completely with 047-g khp define what is the molarity of the naoh
define a 1 l sample of gas at 25c and 1atm pressure is subjected to an reduce in pressure and a increase in temperature
sodium carbonate is a reagent that may be utilized to standardize acids in such standardization it was found that a
a 200-l flask contains 0400 mole of h2 0300 mole of he and 0500 mole of ne at 550c explain what is the partial pressure
compute the weight of kclo3 that would be necessary to produce 3952 liters of oxygen measured at 227c and 720 torr
a solution of malonic acid h2c3h2o4 was standardized by titration with 1000m naoh solution if 2076ml of the naoh
define how much heat is absorbed if 55 grams of sweat is evaporated from someones skin hvap for water at body
explain what is the heat of fusion of chromium in kjmol if 200 grams of solid chromium absorb 582 103 j of heat in
draft the ph curve for the titration of 200ml of a 0150m solution of a weak acid ha ka54x10-6 with 0150m koh indicate
compute the ph concentrations of all species present h2co3 hco3- co32- h30 and oh- in a 0020 m carbonic acid
compute the concentration of all species in a 0050 m selenous acid solution these species include h3o and h2seo3 for
compute the change in helmholtz energy in kj if 333 moles of an ideal gas is isothermally expanded at 100 degc from 444
explain the ph of a solution made by adding 880 grams of ammonium chloride to 450ml of 0105m sodium hydroxide no change
an electron in a hydrogen atom has undergone a transition from n 4 to n 3 energy levels find out the energy of the
explain a wavelength of 9254 nm has been detected from the emission of a hydrogen gas tube while under excitation from