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if ka for an acid ha is 000177 what is the ph at one half the equivalence point for a titration of 5000 ml of 0100 m ha
2 moles of nitrogen gas 4 moles of oxygen gas 1 mole of chlorine gas are kept at a temperature of 300 k in a 40 l
a mixture of 0100 mol of co2 0050 mol of h2 and 0100 mol of h2o is placed in a 100 l vessel and reacts according to the
in a certain experiment a sample of helium in a vacuum system was compressed at 25 degrees c from a volume of 2000 ml
phosphorus-32 decays by beta emission to form sulfur-32 how many half-lives have passed in the reaction shown
two unknowns x and y both having the molecular formula c4h8o give the following results with four chemical tests
the concentration of pb2 in a solution saturated with pbbr2s is 214x10-2 m calculate ksp for
calculate the solubility of each of the following compounds in moles per liter ignore any acid-base propertiesa caco3
calculate the ph of a solution formed by mixing 1960 ml of 0100 m naf and 1980 ml of 0025 m
what volumes of 040 m hno2 and 056 m nano2 must be mixed to prepare 100 l of a solution buffered at ph 355hno2 lnano2
calculate the ph after 0010 mol gaseous hcl is added to 2878 ml of each of the following buffered solutionsa 0050 m nh3
how many moles of naoh must be added to 10 l of 30 m hc2h3o2 to produce a solution buffered at each pha phpka 15 molb
what compounds is used to to change single bonded octane into double bounded high
chemistry questions 1 a triangular planar molecule will have unshared pairs of electrons on the central atom a 0 b 1
question set 5 will consist of two questions from your ayl questions in lessons 7 and 8 essay-type questions should
1two substances are mixed together explain how the observer could determine if this reaction is just a mixture or an
1predict the maximum oxidation state and the most stable secondary oxidation state for the following elements i bi ii
four solution are prepared and mixed together start with 1000ml of 0100m bacl2 add 500ml of 0100m agno3 add 500ml of
a fire extinguisher with a volume of 10 ft3 initially contains co2 at 20 oc and atmospheric pressure and weighs 25
which contains the larger number of molecules 100 g h2o or 100 g h2o2 show evidence for you answerin a blast furnace
you are given a solution of the following cations in water ag co2 ba2 zn2 and sn2 you want to separate the ions out one
balance each of the following equations classify each reaction as combination decomposition single-displacement or
when 250 ml of 0500 m h2so4 is added to 250 ml of 100 m koh in a coffee-cup calorimeter at 2350 degrees celsius the
1 the oh- of a solution is 36 x 10-4 m what is the h3o is the solution acidic basic or neutral 2 what is the correct
give the structure of the ester product in the reaction of acetic acid ch3co2h with isotopically labeled ch318oh and