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you are titrating an unknown acid with a 0228m naoh standard solution it requires 191 ml of the naoh solution to reach
a thin circular disk earring 505 cm in diameter is plated with a coating of gold 013 mm thick from an au3 bath how many
a particular smoke detector contains 195 of with a half-life of 458 the isotope is encased in a thin aluminum
it took 366 min with a current of 228 a to plate out all the silver from 0210 l of a solution containing ag what was
what volumes of h2g and o2g at stp are produced from the electrolysis of water by a current of 320 a in 200
at a certain temperature 0310 mol of pcl3g and 846 x 10-3 mole of pcl5g are placed into a 0844 l flask pcl5g is known
ozone is an air pollutant produced when nitrogen dioxide no2 from automobile exhaust reactswith oxygen the chemical
in order for a nuclear reaction to be supercritical with fissile nuclei what must be true of the multiplication
when 25 ml of 1 m h2so4 is added to 50ml of 1 m naoh at 25 c in a calorimeter the temp of the aqueous solution
the rate constant for a certain reaction is 13 x 10-5 m-1 min-1 at 416 k and 88 x 10-3 m-1 min-1 at 660 k calculate the
what is the ph of the solution created when 100 ml of 050 moll nitric acid is diluted to 150
if 860 g of nahco3s are combined with 322 ml of 0800 m h2so4 how many moles of co2g would be produced if reaction
an aqueous solution of nino32 is slowly added to a beaker of water with a ph of 846 at what concentration of nino32
a 25-g sample of a small protein having a molecular weight of 52000 gmol is dissolved in 576 ml of water calculate the
an ideal solution is formed from a mixture of the nonvolatile solute urea conh22 and methanol ch3oh the vapor pressure
what is the freezing point c of a solution prepared by dissolving 153 g of cano32 formula weight164 gmol in 115 g of
solid aluminum can be separated from molten alcl3 by reduction how many grams of als would be obtained by passing a
galvanized nails are iron nails that have been plated with zinc to prevent rusting the relevant reaction is zn2aq 2e-
a voltaic cell is constructed from a half-cell in which an aluminum rod dips into a solution of aluminum nitrate alno33
the decomposition of substance a to produce products is first-order with a rate constant of 334 x 10-3min if the
a container of nitrogen gas has a volume of 820 l at a temperature of 303 k if the container is heated to a temperature
examine the following acid h atoms are omitted from the structure c-c-cc-c-c-cc-c-c-cooh how many more hydrogen atoms
when an alcohol burner is used for heating the reaction shown below occurs if this burner is used to heat 355 ml of
when the space shuttle lifts off on a mission from cape canaveral the chemical potential energy of the fuel is
what mass of heptane c7h16 is required to produce 902 kj of heat at constant pressure from its combustion in excess