Students were responsible for conducting 4 trials of titration of 15 mL samples of phosphoric acid (H3PO4) with volumes of a 2.2 molar strontium hydroxide (Sr(OH)2) solution. Determine the concentration of the phosphoric acid solution using the results that were obtained.
2H3PO4(aq) + 3Sr(OH)2(aq) Sr3(PO4)2(s) + 6H2O(l)
Trial 1
Trial 2
Trial 3
Trial 4
Initial Buret Reading (mL)
0.1
12.2
24.4
36.1
Final Buret Reading (mL)
12.2
24.4
36.1
48.3
Volume Base Added (mL)
