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The iron content of hemoglobin can be determined by converting the iron to Fe2+ and titrating using MnO4-. A 5.0 g sample of hemoglobin requires 21.6 mL of 0.00310 M potassium permanganate. What is the percent of iron in the hemoglobin sample? (Atomic weights: Fe = 55.85, Mn = 54.94, O = 16.00). 8 H+ + MnO4 - + 5 Fe2+ ----> 5 Fe3+ + Mn2+ + 4 H2O
Calculate the number of moles of benzaldehyde and thiamine hydrochloride used in the Procedure. Explain why benzaldehyde is used for the theoretical yield calculation
what type of intermolecular forces accounts for kr atomica weight 84 boils at
Show that the enthalpy of combustion of saturated hydrocarbons may be expectred to follow the relation
What is the freezing point of a solution of 8.69 grams of the electrolyte sodium acetate NaCH3COO dissolved in 15 grams of water?
Calculate the deltaG in kJ for this reaction at 37 oC to the nearest tenth of kJ. Only include the numerical part of your answer, do not include units
A sample of ammonium dichromate contains 2.25 moles of hydrogen atoms. How many moles of oxygen atoms are in the sample
A 1 M solution of acetic acid is generated and a pH of 4.74 is measured. What is the percent dissociation
Write an overall, balanced equation for the reaction of Na2SO3 with CH3CO2H, and name the reactants and products.
Explain Gibbs-Duhem Equation, In a certain binary solution, the activity of component 1 is given by
determine the variation of temperature within the wall and the value of temperature at x=0.1m.
Which one of these equations describes a redox reaction? 2Al+3H2SO4(aq)-->Al2(SO4)3(aq)+3H2(g), 2KBr(aq)+Pb(NO3)2(aq)-->2KNO3(aq)+PbBr2(s), CaBr2(aq)+H2SO4(aq)-->CaSO4(s)+2HBr(g), H+(aq)+OH-(aq)-->H2O(1), CO.-(aq)+HSO4-(aq)-->HCO3-(aq)+SO42-(aq)
In combustion analysis, 2.00mg of vitamin C yielded 3.00mg CO2 and 0.816mg H2o. From mass spectrometry, it was found that the molecular weight of vitamin C is 176amu. Determine the mass composition of vitamin C, its empirical formula, and its molecul..
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