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if 187 g of acetic acid reacts with 231g of isopentyl alcohol to give 296g of isopentyl acetate what is the percent
a diving chamber is cylindrical in nature with the bottom open above the surface of the water the chambers volume is
a horizontal spring-mass system oscillates on a frictionless table if the ratio of the mass to the spring constant is
a large rock that weighs 1640 n is suspended from the lower end of a thin wire that is 300 m long the density of the
a beaker with 105 ml of an acetic acid buffer with a ph of 500 is sitting on a benchtop the total molarity of acid and
a small wooden block with mass 0850 kg is suspended from the lower end of a light cord that is 154 m long the block is
the 50 kg box shown below is sliding with an unknown initial velocity before it slides down the incline and then
a parallel plate capacitor consisting of two square plates has a potential difference v0 across the plates and
calculate the ph in the solution formed by adding 100 ml of 0050 m naoh to 400 ml of 00250 m benzoic acid hc7h5o2
find the ph of the equivalence points and the volume of 00372 m naoh needed to reach it in titrations of 289 ml of
1 at a certain temperature the following reactions have the constants showns s o2 g so2 g keq 42 x 1052s s 3o2 g
a 218 g sample of ethanol c2h5oh is burned in a bomb calorimeter according to the following reaction if the temperature
how many moles of hf ka 68 x 10-4 must be present in 0200l to form a solution with a ph of
consider the following species ca br1- fe2 cu co3 li list the oxidizing agents list the reducing agents some could be
a 400g ball of clay traveling east at 450ms collides and sticks together with a 400g ball of clay traveling north at
a racemic product mixture is produced when z-4-ethyl-4-octene is subjected to chlorohydrin formation conditions cl2 h2o
a spaceship is observed by a stationary observer to be moving at 6 c a laser beam is shown straight ahead from the
a 1000 ml aliquot of weak base is titrated with hcl the equivalence point is reached after 1721 ml of 04332 m hcl has
calculate the ph at the equivalence point for the titration of 10 m ethylamine by 10 m perchloric
communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as
a cube of ice is taken from the freezer at -89 degrees c and placed in a 93 g aluminum calorimeter filled with 329 g of
the volume of 0162 mol of helium gas at 301 c is increased isothermally from 227 l to 543 l assuming the gas to be
calculate the ph during the titration of 40 ml of 01m hcl with 01m naoh solution after the following additions of basea
explain why the fluoride ion of the terabutylammonium flouride is more nucleophilic than the fluoride ion of sodium
in the bible noah is instructed to build an ark 300 cubits long 500 cubits wide and 300 cubits high historical records