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a 200 ml sample of 0200 m hbr solution is titrated with 02 m naoh calculate the ph of the solution after 199 ml of naoh
at a temperature of 166 degc the mass and volume of a fluid are 798 kg and 120 m3 the coefficient of volume expansion
a spring is hung from the ceiling a 045kg block is then attached to the free end of the spring when released from rest
a solution contains 20 x 10-4 m ag and 15 x 10-3 m pb2 if nai is added will agi ksp 83 x 10- 17 or pbi2 ksp 14 x 10-8
you are able to hold out your arm in an outstretched horizontal position because of the action of the deltoid muscle
the equilibrium constant for the haber process is kc 0105 a two liter flash is filled with 0500 moles of nh3 and
calculate the ph of the solution which results from adding 3854 ml of 01012 m koh to the cyanic acidcyanate buffer of
construct a titration curve of pag vs mls of titrantagno3 titration of 25ml of 0044m kbr with 005m agno3 calculate pag
what is the electric field of a parallel plate capacitor that has q553 uc on one plate and q-553 uc on the other plate
a white solid dissolves in water to form a neutral solution no precipitate forms when this olution is treated with a
water flowing through a pipe suddenly comes to a section of pipe where the pipe diameter decreases to 86 of its
why is it more difficult to identify all of the components of a mixture than it is to identify the cation and anion
a 5 ohms resistor is in series with a 25 ohms resistor and the combination is connected to a 10v battery1 which
a what anion or anions are not presetn in a solution that forms no precipitate upon addition of bacl2aqb which anion of
a carnot engine whose high-temperature reservoir is at 680rm k takes in 530rm j of heat at this temperature in each
400 ml if 0100m t-bucl are mixed with 400ml of 00100 m naoh and 200 ml of distilled watera calculate the initial
a submarine is 302 m horizontally out from the shore and 132 m beneath the surface of the water a laser beam is sent
when responding to sound the human eardrum vibrates about its equilibrium position suppose an eardrum is vibrating with
justify the born-oppenheimer approximation based on vibrational frequencies and the timescale for electron
the hybridization model assumes that atomic orbitals are recombined to prepare directed orbitals that have the bond
a physics student drops a vibrating 450 hz tuning fork down the elevator shaft of a tall building when the student
nitrous oxide n2o is a strong greenhouse gas-effect gas with a global warming potential of 300 times that of carbon
1 a sample gas has a volume of 200cm3 at 25 degrees celsius and 700mmhg if the pressure is reduced to 280mmhg what
a square steel plate is 020 m on a side and 400 mm thicka find the shear strain that results if a force of magnitude
the ion-product constant for water is 10x10-14 at 25 degrees celsius and 38x10-14 at 40 degrees celcius is the forward