A student performs an experiment in which the conductivity of a solution of Ba(O
ID: 480757 • Letter: A
Question
A student performs an experiment in which the conductivity of a solution of Ba(OH)_2 is monitored is the solution is titrated with 0.10.M H_2SO_4. The original volume of the Ba(OH)_2 solution it 25.0 mL. A precipitate of BaSO_4 (K_D = 1.0 times 10^-10) formed during the titration. The data collected from the experiment are plotted in the graph above. As the first 30.0 mL of 0.10 M H_2SO_4 are added to the Ba(OH)_2 solution, two types of chemical reactions occur simultaneously. On the lines provided below, write the balanced net-ionic equation for the neutralization reaction and the precipitation reaction. Equation for neutralization reaction: Equation for precipitation reaction:Explanation / Answer
a. As the first 30.0 mL of 0.10 M H2SO4 are added to the Ba(OH)2 solution, two types of chemical reactions occur simultaneously. On the lines proved below, write the balanced net ionic equations for (i) the neutralization reaction, and (ii) the precipitation reaction.
i. Equation for neutralization reaction _______________________
Ba2+(aq) + 2OH-(aq) + 2H+(aq) + SO42-(aq) ---> Ba2+SO42-(s) + 2H2O(l)
ii. Equation for precipitation reaction _______________________
Ba2+(aq) + SO42-(aq) ---> Ba2+SO42- (s) (or BaSO4(s))
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