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questiona 0879g of a sample a cacl2h20k2c2o2 solid salt mixture is dissolved in 150ml of deionized water a precipitate
a wheel with a moment of inertia of 55 kgbullm2nbspis rotating with an angular speed of 54 rads a second wheel with a
what was the distance delta y that the ball traveled from the starting position at the clamp to the 140 cm photogate to
a hydrogen atom has its electron in thenbspnnbspnbsp2nbspstatea how much energy would have to be absorbed by the atom
a hydrogen atom has its electron in thenbspnnbspnbsp5nbspnbsplevel the radius of the electrons orbit in the bohr model
a hydrogen atom initially in thenbspnnbsp 2 level emits a photon and ends up in the ground statea what is the energy of
a neutral argon atom znbspnbsp18 nbspis in its ground state electronic configuration how many of its electrons are in
find the heat required for 5-kg water to be heated from 30 celsius degree to 50 celsius degree express the temperature
a geiger counter registers a count rate of 6800 counts per minute from a sample of a radioisotope fourteen minutes
the air table has approximate dimensions of 25 cm x 25 cm if the table is set up leveled and then inclined where the
if yt is a parabola of the form yt -12g sinthetat2 v0y t y0 and xt v0x t x0 show by direct substitution that the
a sphere with radius of 2 m is entirely immersed in water 1 find the buoyant force on the sphere by water 2 find the
two masses m1 800 kg and m2 100 kg are connected by a massless string which runs across a massless frictionless
a buffered solution containing dissolved aniline c6h5nh2 and aniline hydrochloride c6h5nh3cl has a ph of 567a determine
in an aqueous solution of a weak acid ha the assumption is often made that haequilibriumnbsp hainitial this
calculate the theoretical yield in grams for the mononitration of acetanilide assuming that you begin with 05g of
please help me with these 2 chemistry questionscalculate the mole fraction of each component in a solution with 687 g
write the net ionic equation for the reaction betweennbspacetic acidnbspandnbspsodium hydroxide do not include states
thenbspoxidation numbernbspof an element is the charge the element would have if all of its bonds were completely ionic
in lab a student wasnbspgiven a hydrated version of nicl2nbspas thenbspunknown the initial mass of the hydrated salt
an aqueous solution ofnbspperchloric acidnbspis standardized by titration with anbsp0137nbspm solution ofnbspsodium
1a what is the freezing point of this solution if 30g na2so4nbspis dissolved in 800ml of water density of water is
1 a pi bond vb theory or a double bond vsepr theory does not affect the geometry of a moleculea what is hybridization
consider the following reaction2naoh h2so4---gtna2so4 2h2o786 g of h2so4 is present initially how many grams of naoh
you have a beaker with 100 00 ml of 0325 m naoh solution on your lab bench your lab partner pours 100 ml of 0825m naoh