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1 determine the molecular geometries of the following moleculesch2cl2cl2o2 how many unpaired electrons are there in the
assume you dissolve 0279 g of the weak acid benzoic acid c6h5co2h in enough water to make 191 102 ml of solution and
given the equilibrium constant kp of 240 x 10-3 at 1000 k for n2g 3h2g equation 2nh3g what is the equilibrium constant
hydrogen chloride reacts with oxygen to yield chlorine and water an equilibrium can be established with this reaction
a particle of charge 12 uc and mass 38 x 10-5 kg is released from rest in a region where there is a constant electric
calculate the ph of a solution prepared by mixing 250 ml of 010 m hcl and 250 ml of 025 m
a plastic rod is rubbed against a wool shirt thereby acquiring a charge of 49 c how many electrons are transferred from
if the ka for the acid phenol call it hp is 13 x 10-10 what is the pka of the phenolate ion
a solution of nh4cl is prepared and its molarity is 100 x 10-3 what is the ph of this solution show all
calculate the change in ph to 001 ph units caused by adding 10 ml of 217-m naoh is added to 470 ml of each of the
an electron has an initial vertical velocity v0 y0001 c when it enters a uniform horizontal electric field e05 x x hat
you have a solid conducting sphere radius a net charge -2q surrounded by a conducting spherical shell inner radius b
0035 moles of so2 0500 moles of so2cl2 and 0080 moles of cl2 are combined in an evacuated 500 l flask and heated to 100
consider the reactioncsco2g2cog hdeg1198kjnow after each change below write an r if you believe the reaction will go to
sodium ions na move at 0844 ms through a bloodstream in the arm of a person standing near a large magnet the magnetic
calculate the minimum concentration of cr3 that must be added to 0095 m naf in order to initiate a precipitate of
a commonly used method of fastening one part to another part is called shrink fitting a steel rod has a diameter of
a buffer solution is prepared by adding 15 g each of benzoic acid and sodium benzoate in 1500 ml of solutiona what is
you are blowing bubbles using a bubble wand that has a circular loop at one end with a radius of 140 cm you hold the
the ksp for gdoh3 is 18 x 10-23 what would be the ph of a solution that contains 001 m
the ksp of agi is 83 x 10-17 what is the molar solubility of agi in a 010 m agno3 solution what principle does this
a thermos contains 151 cm3 of coffee at 857 degc to cool the coffee you drop two 106-g ice cubes into the thermos the
when 3880 j of heat are added to a 0159-m-long silver bar its length increases by 431 x 10-3 m what is the mass of the
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