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a porsche 944 turbo has a rated engine power of 217hp 30 of the power is lost in the drive train and 70 reaches the
permanganate mno4 decomposes in a solution that is in equilibrium with the atmosphere in accordance with the following
calculate delta h for the process in which n2g initially at 250k at 1bar is heated to 700 k at 1 barb how different is
a construction crew wants to extend a uniform rigid metal bar of length 7m and mass 400kg between two platforms which
in order to determine a newly developed materials specific heat conduct material scientists conduct an experiment first
how does a decrease in temperature affect the partial pressure of the underlined substances and the value for keq for
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