56. Solving a chemistry problem
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17. Construct curves of potentiometric titration in the coordinates E – V and E∆/∆V – V and determine the concentration of MgBr2 in the solution (g/l), if during titration of 20.0 ml of the analyzed solution 0.10 N Hg2(NO3)2 ( fequiv = 1/2) received:
V(Hg2(NO3)2), ml 10.00 15.00 18.00 19.00 19.50 19.90 20.00 20.10 20.50
E, mV 501 526 552 570 589 629 704 737 757
V(Hg2(NO3)2), ml 10.00 15.00 18.00 19.00 19.50 19.90 20.00 20.10 20.50
E, mV 501 526 552 570 589 629 704 737 757
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