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question- a sample of nitrogen n2 has a volume of 500 l at a pressure of 760 mmhg what is the volume of gas at a
question- a 100 l balloon contains helium gas at a pressure of 655 mmhg what is the new pressure of a helium gas at 200
question- a vapor composed of 015 mole fraction ethanol and 085 mole fraction acetic acid at 1200 mmhg absolute is in
question- starting with a 6 carbon alcohol a 4 carbon diol and ethanol design a synthesis for 3-ethyl-2-nonanonei
question- a gaseous mixture containing 0200 mol fraction of carbon tetrachloride ccl4 and 0800 mol fraction of dry air
question- show all the reaction steps and mechanism for the reaction cyclohexanone with ethyl chloroacetate with sodium
question- a chocolate chip cookie gives you 437 x 102 kj or energy if this energy were used to boil water how many
question- for the reaction i2gbr2g2ibrg kc280 at 150 degrees celsius suppose that 5 mol of i2 and 5 mol of br2 is
question- which reaction occurs at the cathode of an electrolytic cell containing a mixture of molten kcl and zncl2a k
water is poured over a white solid and a colourless neutral gas is evolved which burns with a sooty flamename the
how much heat is required to warm 225 g of ice from -468degc to 00degcmelt the ice warm the water from 00degc to
problem- what mass of solid nach3co2 molar mass820 gmol should be added to 10 l of 050 m ch3co2h to make a buffer with
problem- the combustion of a 100 mole of methane ch4 produces carbon dioxide and water and releases 803
problem- a 200 ml sample of a cu2 solution was diluted to 2500 ml a portion of this solution was found to have an
problem- for each anion used in todays experiment cl- i- po43- so42- and use the solubility rules to determine if a
problem- what is the initial temperature of a sample of water if by the addition of 12258j a 55g sample has a final
problem- construct a rough plot of ph versus volume of added base for the titration of 50 ml of 0055 m hcn with 0075 m
problem- what is the ph of a solution of 250ml of 135x10-3m hclaq that has been titrated with 1073ml of 100x10-3m naoh
problem- sulphur trioxide so3 a precursor to the manufacture of sulphuric acid is formed by oxidising sulphur dioxide
problem- 1 the titration of a 200 ml sample of an h2so4 solution of unknown concentration requires 2287 ml of a 0158 m
problem- 1 predict whether each compound is soluble or insoluble in waterpbcl2 cucl2 cano32 baso42 what volume in ml of
problem- 1 write the molecular formula for the reaction that occurs between aqueous h2so4 and lioh2 write an equation
problem- 1 what is the molarity of a 656 by mass glucose c6h12o6 solution the density of the solution is 103 gml2 write
problem- hard water often contains dissolved ca2 and mg ions one way to soften water is to add phosphates the phosphate
problem- a x2 ion derived from a metal in the first transition metal series has four electros in the 3d subshell what