# Page 23

7\. Calculate the percent deviation between the trials.

% deviation=(highest molarity - lowest molarity)/average molrity \*100

8\. If the % deviation is greater than 5%, repeat the titration process.

Data:

<table border="1" id="bkmrk-trial-1-trial-2-tria" style="border-collapse: collapse; width: 100%; height: 118.4px;"><colgroup><col style="width: 16.6667%;"></col><col style="width: 16.6667%;"></col><col style="width: 16.6667%;"></col><col style="width: 16.6667%;"></col><col style="width: 16.6667%;"></col><col style="width: 16.6667%;"></col></colgroup><thead><tr style="height: 29.6px;"><td style="height: 29.6px;">  
</td><td style="height: 29.6px;">Trial 1  
</td><td style="height: 29.6px;">Trial 2  
</td><td style="height: 29.6px;">Trial 3  
</td><td style="height: 29.6px;">Trial 4  
</td><td style="height: 29.6px;">Trial 5  
</td></tr></thead><tbody><tr style="height: 29.6px;"><td style="height: 29.6px;">KHP used  
</td><td style="height: 29.6px;">2.00g  
</td><td style="height: 29.6px;">2.00g  
</td><td style="height: 29.6px;">2.00g  
</td><td style="height: 29.6px;">2.00g  
</td><td style="height: 29.6px;">2.00g  
</td></tr><tr style="height: 29.6px;"><td style="height: 29.6px;">Initial NaOH  
</td><td style="height: 29.6px;">0.20mL  
</td><td style="height: 29.6px;">10.00mL  
</td><td style="height: 29.6px;">19.70mL  
</td><td style="height: 29.6px;">29.4mL  
</td><td style="height: 29.6px;">39.15mL  
</td></tr><tr style="height: 29.6px;"><td style="height: 29.6px;">Final NaOH  
</td><td style="height: 29.6px;">10.00mL  
</td><td style="height: 29.6px;">19.70mL  
</td><td style="height: 29.6px;">29.4mL  
</td><td style="height: 29.6px;">39.15mL  
</td><td style="height: 29.6px;">48.85mL  
</td></tr></tbody></table>

Observations:

First trial turned a dark pink after about 10mL of NaOH. Way too dark. About a drop too much of NaOH. Trial 2 turned a dark pink, not as dark as trial 1. Trial 3 was similar to trial 2, same color and same amount of NaOH used. Magic numer seems to be 9.7mL when it turns pink. We lost a little bit of the KHP for the 4th trial. Trial 4 got a very very faint pink color. Even though we lost

some KHP, it looks near perfect titration. Trial 4 looked clear until help against white paper. Trial 5 was a dark pink, though better than 1, 2, and 3. 4th trial was the best out of the 5.

<details id="bkmrk-trial-4-img_5581.jpe"><summary>Trial 4</summary>

 [![IMG_5582.jpeg](https://bookstack.owen-andersen.com/uploads/images/gallery/2025-11/scaled-1680-/bNXimg-5582-jpeg.jpeg)](https://bookstack.owen-andersen.com/uploads/images/gallery/2025-11/scaled-1680-/bNXimg-5582-jpeg.jpeg)[![IMG_5581.jpeg](https://bookstack.owen-andersen.com/uploads/images/gallery/2025-11/scaled-1680-/QKtimg-5581-jpeg.jpeg)](https://bookstack.owen-andersen.com/uploads/images/gallery/2025-11/scaled-1680-/QKtimg-5581-jpeg.jpeg)[![IMG_5583.jpeg](https://bookstack.owen-andersen.com/uploads/images/gallery/2025-11/scaled-1680-/fphimg-5583-jpeg.jpeg)](https://bookstack.owen-andersen.com/uploads/images/gallery/2025-11/scaled-1680-/fphimg-5583-jpeg.jpeg)[![IMG_5580.jpeg](https://bookstack.owen-andersen.com/uploads/images/gallery/2025-11/scaled-1680-/kNBimg-5580-jpeg.jpeg)](https://bookstack.owen-andersen.com/uploads/images/gallery/2025-11/scaled-1680-/kNBimg-5580-jpeg.jpeg)[![IMG_5584.jpeg](https://bookstack.owen-andersen.com/uploads/images/gallery/2025-11/scaled-1680-/kaaimg-5584-jpeg.jpeg)](https://bookstack.owen-andersen.com/uploads/images/gallery/2025-11/scaled-1680-/kaaimg-5584-jpeg.jpeg)

</details>