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100 ml of a 030 m sodium phosphate solution reacts with 200 ml of a 020 m leadii nitrate solution assume no volume
calculate how many ml of 6m hcl are needed to prepare 100ml hcl solution with a concentration of
the solubility of calcium carbonate in water is 145 mg per liter calculate the molarity of a saturated
the heat fusion o water is 601kjmol the heat capacity of liquid water is 75jmol-1k-1 the conversion of 500 g of ice at
calculate the volume of a 1 m solution of hcl required to neutralize 100 ml of a saturated calcium carbonate
in the reaction given below for every 12 molecules of aluminum oxide consumed how many molecules of oxygen are produced
calculate the molarity of a sodium hydroxide solution if a 07216 g sample of khp was dissolved in 50 ml of water and
explain why sodium hydroxide cannot be used as a primary or secondary standard - ie why the molarity of a sodium
duplicate 050 g samples of a finely powdered gold ore are digested in an hclhno3 mix and evaporated to dryness each
if an organic chemist nitrated chlorobenzene would the orthopara ratio be less than equal to or greater than the 3862
a 2995g piece of iron and a 2140g piece of gold of 100c were dropped into 820ml of water at 2585c the molar heat
which are closer together the two nuclei within potassium fluoride kf or the two nuclei within molecular fluorine f2
given that the total number of atoms on our planet remains fairly constant how is it ever possible to deplete a natural
a reaction of 1-methylcyclopentene with hbr might in principle lead to a mixture of two alkyl bromide addition products
an 800-gram sample of gas was heated from 25c to 225c during the process 346 j of work was done by the system and its
glutamic acid c5h9o4n is used as one of thereagents for a standard to check the bod testdetermine the thod of 150 mgl
how many grams of ice at -66 c can be completely converted to liquid at 105 c if the available heat for this process is
an empty cast-iron pot that has a mass of 210 lb and is filled with 185 l of water calculate a the energy in joules
aspirin acetylsalicylic acid c9h8o4 is a weak monoprotic acid to determine its acid-dissociation constant a student
the equilibrium constant for the reaction n23h2lt--gt 2nh3 is kp43410-3 at 300 c pure nh3 is placed in a 100-l flask
an 80 g piece of gold at 650 k is dropped into 100 g of h2o l at 298 k in an insulated container at 1 bar pressure
calculate the weight of benzene codistilled with each gram of water and the percentage composition of the vapor
would the orthopara ratio of nitration of chlorobezene be less than equal to or greater than the 3862 ratio observed
when natural gas mainly ch4 is burned with 10 percent excess air in addition to the main gaseous products of co2 and
write a net ionic equation for the reaction that occurs when excess hydriodic acid aq and ironii sulfide s are