O AT&T; 4:34 PM Ims. uconn.edu minuuest Problem #4 The rate of the reaction, HgC
ID: 989162 • Letter: O
Question
O AT&T; 4:34 PM Ims. uconn.edu minuuest Problem #4 The rate of the reaction, HgCl2(aa) C2042 (aq) ® Cl (aq) CO2 (g) is followed by measuring the number of moles of Hg2C12 that precipitate per liter per second. The following data are obtained: IHgC12l IC 204 Initial Rate (mo s) 0.10 0.10 3 x 10 0.10 0.20 5.2 x 10 0.20 0.20 1.0 x 105 2.6 x 107 0.20 0.10 a) What is the order of the reaction with respect to HgC12, with respect to C2042, and overall? b) Write the rate equation for the reaction. c) Calculate k for the reaction. d) When the concentrations of both mercury(ID chloride and oxalate ion are 0.30 M, what is the rate of the reaction? Problem #5 For the following reaction of Mo(CO).
Explanation / Answer
order with respect to
HgCL2 is 1
order with respect to
C2O42- is 2
overall order = 2+1 = 3
b)
rate = k [HgCl2]1[C2O42-]2
c)
put one set values from table in the above equation you will get k
1.3 x 10-7 = k [0.1] x [0.1]2
k = 1.3 x 10-7 / 0.001
k = 1.3 x 10-4 Mol2/L-2s-1
d)
rate = k [HgCl2]1[C2O42-]2
rate = 1.3 x 10-4 [0.3] [0.3]2
rate = 6.21x 10-6 M/L-s
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