Ap Chemistry 1994 Frq Answers -

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A voltaic cell is constructed using a ( Zn(s)/Zn^2+(aq) ) half-cell and a ( Cu(s)/Cu^2+(aq) ) half-cell. Standard reduction potentials: ( Zn^2+ + 2e^- \rightarrow Zn(s) ) ( E^\circ = -0.76,V ); ( Cu^2+ + 2e^- \rightarrow Cu(s) ) ( E^\circ = +0.34,V ). (a) Write the balanced net ionic equation. (b) Calculate ( E^\circ_cell ). (c) If ( [Zn^2+] = 2.0,M ) and ( [Cu^2+] = 0.010,M ), calculate the cell potential at 298 K. Ap Chemistry 1994 Frq Answers

Using an experiment: Rate = ( 4.0 \times 10^-3 , M/s ), [A] = 0.10 M. [ k = \frac\textRate[A]^2 = \frac4.0 \times 10^-3(0.10)^2 = 0.40 , M^-1s^-1 ] It sounds like you’re looking for an interesting

. It wasn't enough to say an atom was "bigger"; you had to explain effective nuclear charge (a) Write the balanced net ionic equation