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define what is the ph of the solution when 1830 ml of 0137 m trisodium hemimellitalate trisodium benzene 123
suppose 80 g of a gas occupies 295 ml at 25c and 680 mmhg of pressure explain what is the molar mass of the
determine the approximate ph range appropriate for the separation of al3 and mg2 by precipitation of aloh3 from a
state the net equations the standard cell potential as well as the number of electrons transferred in the following
if 250 g of cuso4 are dissolved in 95 102 ml of 021 m nh3 explain what are the concentrations of cunh342 nh3 and cu2 at
explain instant cold packs frequently used to ice athletic injuries on the field contain ammonium nitrate as well as
explain the structural differences between benzene and cyclohexane molecules explain what is a shape of each carbon
the utilization of the british thermal unit btu is common in much engineering work a btu is the amount of heat needed
the three-dimensional structure of the eclipsed conformation and the staggered conformation of ethane utilize plain
75g of sodium hydroxide naoh pellets is dissolved in water to make 20l of solution explain what is the ph of this
the problem is-but-1-ene smiles cccc is reacted with the subsequent reagents in the order shownbr22nanh2 nh3nanh2
state net equations for the spontaneous redox reactions that take place during the following or none if there is no
the thermite reaction in which aluminum metal reacts with ironiii oxide to produce a spectacular display of sparks is
point out whether the ff elements exist as atomic species molecular species or extensive three dimensional structures
find out the number of grams h2 formed when 2500 ml of 0743 m hcl solution reacts with 341 x 1023 atoms of fe according
explain a 368-g sample of water absorbs infrared radiation at 106x104 nm from a carbon dioxide laser presume all the
explain an atom of element number 33 as is in its ground electronic state explain which one of the subsequent sets
forms hydronium ion h3o forms hydroxide ion oh- loses electrons oil gains electrons rig where oxidation takes place
determine the subsequent reaction at equilibrium define what effect will increasing the temperature have on the
explain how many moles of hydrogen gas would be wanted to react with excess carbon dioxide to produce 991 moles of
explain a student neglected to calculate the volume of the flask by using a graduated cylinder as he did not know the
determine the subsequent reaction at equilibrium explain what effect will increasing the temperature have on the
if a black precipitate remaining from the separation of cr3 as well as fe2 ions from ni2 ion is dissolved in hcl and
three 5-l flasks fixed with pressure gauges as well as small valves each contain 4 g of gas at 273 k flask a contains
mgnh4po4 x 6h2o has a solubility of 0023g100 ml in water presume a 502g sample was washed with 20ml of water explain