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Consider the following Galvanic cell at 298K. This cell is a bettery producing a positive voltage. (Reaction goes in the direction it is written)Pt |Mn^+2, MnO4^-1 || S2O8^-2, SO4^-2| Pt
a) Write the balanced chemical reaction. Assume acid conditions
b) Sketch a possible physical arrangemnt for this battery
at 900 k the following reaction has kp 0.345 2so2g o2 g ltgt 2so3g in an equilibrium mixture the partial pressures of
A gas cylinder of 55.0L volume contains N2(g) ata pressure of 32.5atm and 23.0C. What mass of Ne(g) must be introduced into this same cylinder to raise the total pressure to 65.0atm
a substance containing 28.84 nitrogen 0.0648g hydrogen and oxygen and carbon with total mass of the substance 1.2953 is
A graduated cylinder contains 133 mL of water. A 17.0 g piece of iron (density = 7.86 {g/cm^3}) and a 23.0 g piece of lead are added. What is the new water level in the cylinder?
A container with a removable partition contains gas A and gas B. Gas A is at 400K and 10.0 atm and gas B is at 400K and 4.00 atm. The partition is removed and the gases mix.
Which starting material is the limiting reagent in this procedure? Which reagent is used in excess? How great is the molar excess (how many times greater)?
Carboxylic acids can be made by the hydrolysis of nitriles, which in turn can be made from an alkyl halide. Draw the structures of a starting alkyl bromide and the intermediate nitrile that would be used in the synthesis of phenylacetic acid
Which of the isomers of octane has only two peaks in its 13C NMR? Draw the structure of the alkane. 2. Draw the structure of the C4H9Cl isomer given the following proton NMR data:
what amount of HCl in grams is needed to react with .676 g Al(OH)3
Write the Henderson-Hasselbalch equation for a solution of propanoic acid (CH3CH2CO2H, pKa = 4.874 ) using HA and A- in the expression. pH= ? Using this equation, calculate the quotient
what is the density of a block of marble that occupies 306 cm3 and has a mass of 804 g? answer in units of g/cm3.
The filter is heated to 550 oC, and the filter plus residual then weighs 37.0 g. Another 10.0 L sample of the same water is evaporated, without filtering, yielding a residual mass of 40.0 g.
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