A solution of 0.2 M sulfuric acid is titrated with a 0.2 M basic solution. In three to five sentences, explain how you can use the results of the titration as evidence for the ratio of sulfuric acid and the base in the balanced chemical reaction for the titration.
If the base is monobasic, such as KOH, then
2KOH + H2SO4 ==> K2SO4 + 2H2O
If the base is dibasic, such as Ba(OH)2, then
Ba(OH)2 + H2SO4 ==> BaSO4 + 2H2O
If the base is tribasic, such as Al(OH)3. then
2Al(OH)3 + 3H2SO4 ==> Al2(SO4)3 + 6H2O
In the titration, moles H2SO4 = moles base at the equivalence point. Since the molarity of acid and base are the same and moles = M x L, the ratio of volume (mL) H2SO4 to volume (mL) base will tell you if you have case 1, case 2, or case 3 from above. 1 :1(acid:base) will be a dibasic (case 2). 1:2 (1 mL acid to 2 mL base) will be case 1 above. And a 3 mL acid: 2 mL base will be case 3 above. That's more than 5 sentences but I wanted to be sure you understand it so put this in your own words and follow the instructions in the problem.
To use the results of the titration as evidence for the ratio of sulfuric acid and the base, you need to determine the volume of the acid and the base used at the equivalence point.
First, record the initial volume of the acid solution and gradually add the base solution until the equivalence point is reached. The equivalence point is the point at which the moles of acid and base are in a stoichiometric ratio.
By measuring the volume of the base solution required to reach the equivalence point, you can calculate the number of moles of base used. Then, using the molar concentration (0.2 M) of the base, you can determine the number of moles of sulfuric acid initially present in the acid solution.
Finally, by comparing the moles of acid and base, you can establish the ratio between them in the balanced chemical reaction. The balanced reaction ratio will be the ratio of moles of acid to moles of base required to reach the equivalence point.
To determine the ratio of sulfuric acid to the base in the balanced chemical reaction, you can use the results of the titration. Firstly, measure the volume of the sulfuric acid solution required to neutralize the basic solution. This volume can then be used to calculate the moles of sulfuric acid reacted.
Next, based on the balanced chemical reaction, determine the stoichiometric ratio between sulfuric acid and the base. For example, if the balanced equation is 1:2, it means for every 1 mole of sulfuric acid, 2 moles of the base react.
Finally, compare the moles of sulfuric acid calculated from the titration with the expected moles based on the stoichiometric ratio. If the calculated moles match the expected moles, it provides evidence for the ratio of sulfuric acid to the base in the balanced chemical reaction.