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Hexacoordinate Fe (II) in heme is bright red. Pentacoordinate Fe (II) is blue. Define how these electronic changes account for the difference in colors of arterial and venous blood
How much H2O is produced when 20000 g of C2H2 burns completely? Answer in units of grams
The individual standard electrode potentials do not indicate anything about tendency to gain electrons. The cell potential of the entire cell does.
calculate the number of grams of solute that would be needed to make each of the following solutions2.50 x 102 ml of
di ethyl ethal is a volatile, highly inflammable organic liquid that is used mainly as a solvebt. the vapour pressure of di ethyl ethal is 4.01mmHg at 18 degree celcius.
The synthesis of enzymes in response to changing metabolic needs is referred to as
a nonelectrolyte of 558.9 grams are fully dissolved in sufficient h2o to produce an aqueous solution of 2.50 litres at
Calculate the standard reaction enthalpy for the formation of boron trifluoride, which is widely used in the chemical industry:B2O3(s) + 3CaF2(s) > 2BF3(g) + 3CaO(s).
How many grams of a stock solution that is 85.5 percent H2SO4 by mass would be needed to make 150 grams of a 45.0 percent by mass solution?
Calculate from your titration results the moles of acidic protons in the tablet neutralized by the NaOH.
2-butene-1-thiols is one component of skunk spray. How whould you synthesize this substance from methyl 2-buenoate? From 1,3-butadiene
what is the purpose of a buffer system? b)what is the purpose of NaNO2 in the buffer? c)how does the buffer react when some H3O^+ is added? d)how does the buffer react when some OH^- is added?
0.2356 g sample containing only NaCl and BaCl2 yielded 0.4637g of dried AgCl. Calculate the percent of each compound in the sample.
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