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Write the cell reaction and electrode half-reactions, and calculate the standard potential for each of the following cells:
a) Pt|Fe3+(aq),Fe2+(aq)||Sn4+(aq),Sn2+(aq)|Pt
b) Cu|Cu2+(aq)||Mn2+(aq),H+(aq)|MnO2(s)|Pt
What volume of solution should be dispensed from the buret to provide 5.633 mmol CO2-3 ? Answer in units of mL.
What is the density of a block of marble that occupies 251cm^3 and has a mass of 623g?" answer in units g/cm^3
Draw a correct and complete arrow pushing mechanism for the reaction of aspirin and sodium bicarbonate to form sodium acetylsalicylate.
A solution is prepared by dissolving 18.4 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 11.00 mL sample of this stock solution is added to 50.00 mL of water. Calculate the concentration of ammonium ions and sulfate ions ..
In a titration of 25.80 mLs of 0.256 M HCOOH (formic acid, Ka = 1.8x10-4) with 0.286 M KOH, how many mLs of titrant will be required to reach the equivalence point?
When strontium bromide (SrBr2) is heated in a stream of chlorine gas, it is completely converted to strontium chloride
16.57 The complex [Ni(NH3)6]2+ has a ligand field splitting of 209 kJ·mol-1 and forms a purple solution. What is the wavelength and color of the absorbed light.
what is the maximum mass of CO2 that can be produced from the combustion of .377g C2H5OH
Alkenes and non conjugated dienes usually have absorption maxima below 200nm. Compounds that have conjugated multiple bonds have maxima at wavelengths longer than 200nm.
Calculate how much heat is released when 4.5 g of methane is burned in a constant pressure system. (CH4(g) + 2 O2(g> --> CO2(g) + H2O (l) ,delta H = -890 kJ.
what is the classification of each reactant as metal or nonmetal?
What is the freezing point of a solution of 1.17 g of 1-naphthol, C10H8O, dissolved in 2.00 mL of benzene at 20°C? The density of benzene at 20°C is 0.876 g/mL. Kf for benzene is 5.12°C/m, and benzene's normal freezing point is 5.53°C.
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