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100 ml of 05 m hcl is mixed with 100 ml 05 m naoh in a constant pressure calorimeter s cup 335j k-1 the initial
suppose a 500ml flask is filled with 16 mol of co 010 mol of no and 11 mol of co2 the following reaction becomes
haaq oh-aq h2o a-aqunknown acid 04g50ml water was titrated with naoh to reach the equivalence pointresult addition
an impure sample of benzoic acid c6h5cooh 12212gmol is titrated with 09855 m naoh a 3412g sample requires 2443ml of
calculate the concentration m of the following solutions prepared by diluting 5 ml of 0100 m naoh with water until the
determine wheather each of the following reactions is a redox reaction if it is identify what is being oxidized and
an unknown colorless aqueous solution may contain any of these nine ions co3 2- so4 2- cr4 2- cl- pb2 ni2 cu2 or fe3
1 a student titrated a 10115g sample of potassium hydrogen phthalate hkc8h4o4 2042285 gmol and commonly known as khp
nicotine c10h14n2 a plant alkaloid is an oily liquid that makes up between 06 to 3 of a cigarettes mass contact with
a particular solution of butanoic acid has a measured ph of 510 what is the formal concentration of the acid in this
suppose that in the cross with the peas you represent the dominant allele bynbspanbspand the recessive allele
what does your percent error indicate about the experiment what are possible sources of error in this experimentin the
calculate the percent error in the experiment using the experimental mass of cuo and the theoretical mass of cuo the
suppose you have a fish tank that is split down the middle into two parts by a membrane that the fish can get through
preliminary informationin this project you are first asked to replicate an existing simulation of a process for the
for a normal distribution with a mean of 222 and a standard deviation of 31 what is the z value distance from the mean
1 are the following probability distributions valid probability distributions explain why or why
in a random sample of 28 families the average weekly food expense was 9560 with a standard deviation of 2250 determine
a drop of water has a volume of approximately 005ml how many water molecules does it contain the density of water is
liquid hexane ch3ch24ch3 reacts with gaseous oxygen gas o2 to produce gaseous carbon dioxide co2 and gaseous water h2o
a sample consists of one or more of the following salts bacl2 li2co3 nano3 the sample dissolves completely in water and
a estimate the heat released when ethene ch2ch2 reacts with hbr to give ch3ch2brbond enthalpies arec--h 412 kjmol
part 1 air is a mixture of 781 nitrogen n2 2095 oxygen o2 and 09 argon ar and 005 carbon dioxide co2 what is the mole
lactic acid hc3h5o3 is the acid which forms when milk sours as its formula indicates this acid has an acid hydrogen ion
suppose 0731g of zinc chloride is dissolved in 350ml of a 790mm aqueous solution of ammonium sulfate calculate the