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a the molar solubility of pbbr2 at 25 degc is 10 x 10-2 moll calculate kspb if 00490 g of agio3 dissolves per liter of
a why is the concentration of undissolved solid not explicitl included in the expression for the solubility-product
consider the following equilibrium2 h2g s2g harr 2h2sgnbspnbspnbsp kc 108 x 107 at 700oca calculate kpb does the
consider the reaction a b c d assume that both the forward reaction and the reverse reaction are elementary
the diagram shown here represents the equilibrium state for the reaction a2g 2 bg 2 abg a assuming the volume is 2 l
the reaction a2g bg ag abg has an equilibrium constant of kp 2 the accompanying diagram shows a mixture containing
the reaction a2 b2 2 ab has an equilibrium constant kc 15 the following diagrams represent reaction mixtures
the following diagram represents a reaction shown going to completiona letting a red spheres and b blue spheres write
a simplistically the operating system kernel is just a computer program one that manages the hardware and allows the
the molecular-orbital diagrams for two- and four-atom linear chains of lithium atoms are shown in figure construct a
a student prepared a solution of sodium carbonate by 2111g of the solid to a 2500ml volumentric flask and adding h2o to
in preparing their financial statements us firms with sales abroad in foreign currencies have to engage in foreign
in 2012 germany had a balance of trade surplus of 238 billion and a current account surplus of 208 billion explain how
a in polyvinyl chloride shown in table which bonds have the lowest average bond enthalpyb when subjected to high
although polyethylene can twist and turn in random ways the most stable form is a linear one with the carbon backbone
spinel is a mineral that contains 379 al 171 mg and 450 o by mass and has a density of 357 gcm3 the unit cell is cubic
the karat scale used to describe gold alloys is based on mass percentagesa if an alloy is formed that is 50 mol silver
the valence band of a semiconductor is made up of bonding molecular orbitals and the conduction band of ant bonding
germanium has the same structure as silicon but the unit cell size is different because ge and si atoms are not the
silicon carbide sic has the three-dimensional structure shown in the figurea name another compound that has the same
the electrical conductivity of titanium is approximately 2500 times greater than that of silicon titanium has a
cds has a band gap of 24 ev if large crystals of cds are illuminated with ultraviolet light they emit light equal to
gaas and gap eg 226 ev make solid solutions that have the same crystal structure as the parent materials with as and p
cadmium telluride is an important material for solar cellsa what is the band gap of cdteb what wavelength of light
silicon has a band gap of 11 ev at room temperaturea what wavelength of light would a photon of this energy correspond