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Titration Lab

Curricular Competency Reflection

The slow addition of a solution with a known concentration (sodium hydroxide) to a solution with an unknown concentration (hydrochloric acid), was used to calculate the molarity of hydrochloric acid. The end point in a titration is when the reaction is complete. As an indicator was used, the finish line of the titration was when the solution stayed a pale pink for at least 30 seconds. Within both trials an average of 14.14 mL +/- 0.20mL was used in the titration.

Core Competency Reflection

During this lab I actively supported and encouraged my peers. I created a collaborative and upbringing environment. By thinking back to in class lessons and activities I applied that knowledge in the lab to connect the strategies upon accuracy with my partner. By emphasizing respect and inclusivity I allowed my partner to speak their voice and thoughts creating a sense of belonging. Moving forward I plan to enhance my collaboration skills and involve all team members diverse thoughts and opinions.

Initial volume 0.11mL +/- 0.05mL (trial 1)

Initial Volume 0.00mL +/- 0.05mL (trial 2)

Final Volume 14.03mL +/- 0.05 mL (trial 1, trial 2 was not taken picture of)

Facing a Challenge

The first time I tried this problem I found it challenging because I was confused as to what to do with the x squared. The first mistake I made was trying to put both sides of the equation back into the radical. There was a question just like it in group work, however it wasn’t my turn with the pen and I was just watching and observing. When I got to this workbook question I realized this was like a group work question and went back and remembered the strategy my group members came up with. I used the zero product property rule all the way back in 1.2, and factoring. I really enjoyed solving this problem because it showed how important factoring is, and how we can apply it into more complex problems. Next time I encounter a problem I will look through the notes and examples more.I try and use the examples almost as if they were a formula that I can “cut and paste” into any problem.