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A voltaic cell consists of a Zn/Zn2+ half-cell and a Ni/Ni2+ half-cell at 25 ?C. The initial concentrations of Ni2+ and Zn2+ are 1.50M and 0.100M , respectively. The volume of half-cells is the same.
Part AWhat is the initial cell potential?
Part BWhat is the cell potential when the concentration of Ni2+ has fallen to 0.600M ?
Part CWhat is the concentrations of Ni2+ when the cell potential falls to 0.46V ?
Part DWhat is the concentration of Zn2+ when the cell potential falls to 0.46V ?
C2H6+O2 ---> CO2+H2O Calculate the mass of H2O that should form if 1.5 g of C2H6 is combusted in the presence of 2.5 g of O2.
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Draw the accepted mechanism for each reaction and illustrate how each stereoisomer is formed in the reaction.
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A mixture of 0.1079 M CO (g) and 0.1079 M H2O(g) was allowed to react and come to equilibrium at some temperature. If Kc = 5.668, what is the equilibrium molar concentration of H2 for the reaction.
Calculate the change in pH when 7.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq).
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