My chemistry blog

The question we were trying to answer was “what are the identities of the unknown solutions”? During this investigation we completed our pre lab write up & made a chart in our notebooks. The chart had two sections one for the consumables ( calcium, barium, copper, lithium, potassium, sodium, strontium, and four unknown) and the other was for the  color of each consumable. Then we lit our busen burner after that we went up to Ms. Gardner and got 2 matches at a time with the metals on them. Then we put each match one by one under the small blue flame in the middle. We then observed each color of each metal and copied our observations of each color into our table. We conducted our expirement this way because we felt it would be the easiest and most organized way to see and compare our data. Our claim is that unknown one is sodium (orange), unknown two is barium  (yellow/green), unknown three is lithium (red), and unknown four is potassium (light orange). In this lab the flame test wo

During the last two weeks we have competed and electron energy and light pogil. As well as a hope it floats practice and two flipped notes on unit 3. We also completed a flame test lab in class as well as a  light practice worksheet. I have recently learned that the colors are what makes the electrons unique. The energy absorbed or emitted from the process of electron promotion or demotion can also be observed as an overall color for the element. I plan on practicing the equations more to better my learning so that I get them down and know what exactly each symbol stands for.

In this lab the question we were trying to answer was "What is the atomic mass of beanies?" What we did in this investigation was find the atomic mass of beanium, we did this by multiplying each mass by the abundance (%) then adding them together (all 3 of the types of beans) and dividing them by 100. Our claim is that the atomic mass of beanium is .41g.

Within the last two weeks we have completed an Atom PHET sim packet, as well as exploring isotopes and average atomic mass lab. What I have recently learned is that the atomic mass of an element is the weighted average of the masses of the isotopes of that element. I plan on improving my understanding by actually learning the PHET packet materials as I go rather than just fill out the packet.

Over the last two weeks the tasks we've completed were our chapter one test, an isotopic abundance PHET, and a mixture separation lab. I've recently learned that isotopes are atoms with the same number of protons but different numbers of neutrons. They have different atomic weights and isotopes are different forms of a single element. To improve my understanding and reinforce my learning for the next two weeks I will study more efficiently for test number two and actually use what I learned and apply myself to the material.