Sunday, February 17, 2013

Week 20

During week 20, we mainly worked with the concept of moles. At the beginning of of the week, though, we did the experiment lighting the magnesium on fire again. This time we finished it though and ended up concluding that the magnesium had gained mass from lighting it on fire. This means that the product must've taken in particles from the air. Then, indirectly we began working with moles. We started in class with six containers containing six materials in each. We were asked to then find the relative mass of each by comparing them all to one of the items. Mr. Abud then introduced the mole to us. A mole answers the question of "how many" and is equal to 6 x 10^23 particles. Also, molar mass is the mass of a substance on the periodic table except measured in grams. You can find the amount of molecules or weights of moles with various substances, and can make it easier if you incorporate the phrase "for every" while working with your information. The week was a bit repetitive, but was necessary to get the idea into our heads.









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