In a titration experiment, how would you tabulate your results and calculate the average volume of acid used…

Question

In a titration experiment, how would you tabulate your results and calculate the average volume of acid used, given a pipette volume of 25.0 cm³ for solution B?

ScanSolve AI Tutor · Accepted Answer

Here's how you would tabulate your titration results and calculate the average volume of acid A used, assuming hypothetical readings.

The volume of the pipette used for solution B is $\boxed{25.0 \text{ cm}^3}$ .

Tabulate the titration results.
A titration table records the initial and final burette readings, and the volume of titrant used (titre). "Concordant titre values" are those that are within $\pm 0.10 \text{ cm}^3$ of each other.
$\begin{array}{|l|c|c|c|} \hline \textbf{Titration} & \textbf{Initial Burette Reading} \ (\text{cm}^3) & \textbf{Final Burette Reading} \ (\text{cm}^3) & \textbf{Volume of Acid Used} \ (\text{cm}^3) \\ \hline \text{Rough} & 0.00 & 25.50 & 25.50 \\ \text{1st Titration} & 0.00 & 24.70 & 24.70 \\ \text{2nd Titration} & 24.70 & 49.35 & 24.65 \\ \text{3rd Titration} & 0.00 & 24.60 & 24.60 \\ \hline \end{array}$
Identify concordant titre values.
From the table, the titre values are $24.70 \text{ cm}^3$ , $24.65 \text{ cm}^3$ , and $24.60 \text{ cm}^3$ . All these values are within $0.10 \text{ cm}^3$ of each other ( $24.70 - 24.60 = 0.10$ ). Therefore, all three are considered concordant.
Calculate the average volume of acid A used.
The average volume is calculated by summing the concordant titre values and dividing by the number of concordant values.
$\text{Average volume of A} = \frac{\text{Sum of concordant titre values}}{\text{Number of concordant titre values}}$ $\text{Average volume of A} = \frac{24.70 \text{ cm}^3 + 24.65 \text{ cm}^3 + 24.60 \text{ cm}^3}{3}$ $\text{Average volume of A} = \frac{73.95 \text{ cm}^3}{3}$ $\text{Average volume of A} = \boxed{24.65 \text{ cm}^3}$

In a titration experiment, how would you tabulate your results and calculate the average volume of acid used, given a pipette volume of 25.0 cm³ for solution B?

Step-by-step solution

Tabulate the titration results.

Identify concordant titre values.

Calculate the average volume of acid A used.

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