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after mixing 200g of h2s with 200g of naoh a 920 yield of sodium sulfide is obtained calculate the experimental yield
an element x forms compounds xi3 and xcl3 the first compound reacts with chlorine according to the following reaction
based on a kc value of 0210 and the given data table what are the equilibrium concentrations of xyx and y
determine the volume measured in a buret of a 02750m solution of hcl needed to consume all the calcium carbonate in a
if you add 100ml of a 450 by mass of aqueous sodium hypochlorite solution density 108 gml csp 4210 jg degrees c and
what is the balanced chemical reaction for the reaction of sodium sulfite and bleach sodium hypochloritenaclo to
calculate the change in entropy s for reversible cooling 1 mole of an ideal monatomic gas from 30 degrees c to 0
to prepare sodium hypochlorite naclo the principle component in chlorine bleach chlorine gas is bubbled throught an
determine the heat capacity of the calorimeter if you have 25g of water at a temp of 2250 degrees c then add 10 g of
suppose you were to prepare a buffer solution using ammonia and ammonium chloride what would be the molar ratio of acid
only very pure phosphoric acid is used in food products an older term for soft drinks is phosphates this name was
extremely small pieces of pet were necessary to ensure a successful hydrolysis in the allotted time a 100ml
calculate the volume of the acid solution needed to completely neutralize the base in the flask 2calculate the ph for
calculate the ph at 25degc of an aqueous solution that is 0320 m in ethylamine and 0140 m in ammonia iethe solution
d-maltose is a disaccharide and d means the oh on the second to last carbon to the bottom is on the right and l means
a a uvv is spectrometer is used to measure the absorbance of a solution of hemoglobin bound to oxygen at 590 nm the
the quantum yield for co production in the photolysis of gaseous acetone is unity for wavelengths between 250 and 320
the atomic mass of gallium is 6972 amu which has two isotopes ga-69 atomic mass 6892 amu and ga-71atomic mass 7092 amu
even though butanols have the same number of the same atoms we see large differences in their ability to dissolve water
an organic compound of molecular formula c10 h12 o2 reacts with both aqueous naoh and aqueous nahco3 the compound
why are the kr---kr and intermolecular br---br distances in the solid form of the two elements practically identical
an aqueous solution of sodium hydroxide reacts with an aqueous solution of ammonium chloride yielding aqueous ammonia
write balance equation for dissolution reactions and the corresponding solubility product expressions for each of the
if you dilute 250 ml of 150 m hydrochloric acid to 500 ml what is the molar concentration of the dilute
50 kg of hydrogen is reacted with 31 kg of oxygen the experiment yields 28 kg of water calculate the percent yield of