Acids and Bases Titration Lab 2

The titration lab 2 is very similar to the last lab. Most people had to standardize the new solution but luckily we didn't have to because we already figured out the molarity in the last lab. This helped speed up the lab. Essentially we needed to find the molar mass of the unknown substance we had. We titrated the solution with the NaOH solution with the known molarity. We could then run the math and calculate the molar mass of the unknown substance. I thought this was a good experience because I missed the first day. This was complicated lab but I definitely needed it to help me get through this unit.

Acid Base Titration Lab 1

Last week on Wednesday through Friday we worked on a titration lab. It was one of the more complex labs we have done in the year and I missed it because I was on a field trip. So basically, we titrated KHP with NaOH. We used the mass of KHP and the volume of NaOH to calculate the molarity of the NaOH using the volume needed to titrate the solution. Since I was gone, I used another groups data which had 0.1930 as the Molarity of the solution. Part two of the lab consisted of us titrating acetic acid with the NaOH we had. Since we now know the molarity all we needed was to know was the volume of NaOH is needed to titrate the vinegar. The group's calculations came out to about 0.2318M for the Acetic Acid.

In the end, I do believe it was beneficial to do this lab because it would've helped me understand the unit more. Since I missed it, I am spending my time trying to learn what happened. Luckily we do another lab that is very similar Monday and Tuesday.

Acid Base Quiz

So I've been convinced that the acid base unit is the most impossible thing in the world. Since I am somewhat scared I am trying to prepare myself a little more than I normally would. I prepared pretty well for the quiz so I was hoping for the best... I ended up with a B on the quiz so I was somewhat okay with it but I was hoping for better. Oh well, on to the test!

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Test

The Aqueous Solutions Test was not the worst test in the world. It was 26 questions so it was decently short and it was relatively easy compared to other test I have taken in the past. Only struggled on some of the ions.. Those confused me through the unit. Hope everyone did well!

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Test Study Links

It is that time of the week again!!!!!!! Test day is tomorrow and here are some links that I have used for help throughout the unit. They can be of assistance to anyone who chooses to utilize them to review tonight.

Stoich
Molarity Vocab
Molarity
Dilutions
Ions
Aqueous Solutions

Good luck

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Mystery Murder Lab

Over the past couple of days we have performed a lab that told us to find out who killed Miss Scarlet. We were left a series of clues and essentially told to figure it out. In the end, we were able to test a mystery substance that we believe killed Miss Scarlet. We needed to test the substance to find out the molarity, which would then lead us to the killer. It was a creative approach to the what would've been average lab! I enjoyed it thoroughly. Here are some photos of our reaction and finished product.

I am currently working on the math to get the result and I will post them shortly!

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Dilution Lab and Lesson

We learned a lesson about serial dilution today and learned the math behind diluting solutions. It consists of a simple equation which essentially describes a ratio. 

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We performed the lab with simple food coloring and we diluted the entire solution down to clear water. Although the lesson was simple the experiment helped me get a full understanding of the lesson. Hopefully I will be ready for the quiz on Monday! 

This is what the experiment essentially looked like in animated terms.

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