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what volume of a 0236 m hcho2 must be added to 100 l of a 0500 m solution of nacho2 to give a ph of 3 assume that
how do you derive the work equation for a non-isothermal but reversible reaction using t ti - cv-vi and c is a positive
a uniform upward electric field of magnitude 160 x 103 nc has been set up between two horizontal plates by charging the
while in europe if you drive 113 km per day how much money would you spend on gas in one week if gas costs 110 rm euros
in the confirmation test that you performed for silver i ion addition of nitric acid hno3 to a solution containing ag
a garden hose with an internal diameter of 20 cm is connected to a stationary lawn sprinkler that consists merely of an
an aqueous solution containing 355 g of an unknown molecular nonelectrolyte compound in 1563 g of water was found to
which provides better protection against corrission painting a metal or galvanizing a metal justify your
adding magnesium ribbon about 5g in a solvent of 100ml of hcl acid in a polysterne cup as my calorimeter my question is
given the energy of a diatomic molecule with masses m1 and m2 constrained to move along the x axis the force constant
what small molecule is eliminated during the dehydration reaction when acetaldehyde is heated in the presence of koha
potassium manganate is a dark green crystalline substance whose composition is 396 k 279 mn and 325 o by mass what is
a tungsten target is struck by electrons that have been accelerated from rest through a 299-kv potential difference
which works better as a solvent for benzoic acid water or the solvent pair of methanol and
assume all angles to be exact a certain crystal gives a deflection angle of 25 degree for the first-order maximum of
ccl2f2 is 289 jgwhat mass of this substance must evaporate in order to freeze 180g of water initially heat of fusion
a 914-m ladder with a mass of 242 kg lies flat on the ground a painter grabs the top end of the ladder and pulls
a transformer has 400 primary turns and 1510 secondary turns the input voltage is 120 v and the output current is 160 a
an explosion breaks an object into two pieces one of which has 15 times the mass of the other if 7900 j were released
the magnetic field in an electromagnetic wave has a peak value given by b 55 microt for this wave find each of the
blocks a mass 200 kg and b mass 1500 kg move on a frictionless horizontal surface initially block b is at rest and
a 160 kg fish swimming at 140 ms suddenly gobbles up a 450 kg fish that is initially stationary neglect any drag
one thousand kilograms per hour of a mixture containing equal parts by mass of benzene and toluene are distilled the
two identical spaceships are traveling in the same direction an observer on earth measures the first to have speed 080c
to prepare a solution of 50 sulfuric acid a dilute waste acid containing 28 h2so4 is fortified with a purchased acid