Hon Chemistry 11-12-20 Moles, Molar Mass & Avogadro’s Number

HON CHEMISTRY: So….you think if his work helped us understand something as significant as the number of something in a mole they might name something after him? They did! Go figure! Another name for the number of anything in a mole is Avogadro’s Number. That would be how many?

You caught on super fast today! Remember, it’s all in terms of one mole. The mass of one mole, the molar mass, is the average atomic mass of the element in grams (periodic table). And the number of atoms in one mole is …. well you know that. Speaking of moles, isn’t he cute? Well, beauty being in the eye of the beholder and all. Hmmmm………


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18 thoughts on “Hon Chemistry 11-12-20 Moles, Molar Mass & Avogadro’s Number

  1. Positronium is a very peculiar set of ions they have no nucleus and are made of an electron and a positron, or matter and antimatter which when they make contact with each other they will annihilate each other. Scientists have tried to study this more but to do so it is very difficult because the two subatomic particles are attracted to each other so there is not much time to study this. So, to deal with this scientists have made these subatomic particles jump up an energy level, to keep them farther away giving them more time to study, using microwave radiation. However, what is strange about this is that when scientists tried to predict how much microwave radiation it would take to make them jump up an energy level, after testing, they found their calculations were wrong and they aren’t sure why.

  2. While researching how electron bombardment could chemically change Europa’s surface ice, the team saw that an ice sample pelted with electrons gave off a glow. Curious the team decided to experiment on glow with ice mixed with different types of salts. Their experiments showed that epsomite glows the best. With this knowledge they hope that they could find out how deep the ice is, what lives underneath the ice in the ocean, and if there are life forms on Europa . But many scientists speculate that Europa’s surface is highly salted and suggest that there could be other reasons for it glowing.

  3. The scientists part of this study wanted to prove whether or not typing or writing your notes is more beneficial to the student. They used an electrode cap for 12 adults and 12 seventh graders in order too see which parts of their brains are used when they are writing versus typing. They discovered that when writing you use your memory, language, and learning skills. When you type you do not use any of these. The scientists were able to conclude from their results that it is more beneficial to your learning to hand-write your notes.

  4. Handwriting notes is better than typing them. Scientists monitored brain waves of twenty-four people and saw that, when writing, areas of the brain that control language and memory were used, but these areas were not used when typing.

  5. My science in the news article was about how researchers and doctors have been looking into how COVID-19 has been impacting the brain. Some patients who had had coronavirus were showing blood clots, strokes, and many had mental changes such as confusion or depression. Researchers are still uncertain of why those damages have been occurring but this study has improved their knowledge and research methods.

  6. My article for science in the news talked about how a group of researchers have developed a sensor that will hang from trees and will alert fire departments if it picks up smoke or rising temperatures. To power the sensor, the scientists made it so the sensors when the 2 cylinders run together, with the help of a triboelectric nanogenerator, that motion turns into static electricity!

  7. Synthetic biologists conducted an experiment to find out how “living concrete” affects the environment. They found out that a safe bacteria, called cyanobacteria, when put in the mix of concrete, will absorb nutrients from the mix and grow larger. During this process, the bacteria sucks up unnecessary carbon dioxide from the environment. In addition, the growth of the bacteria strengthens the concrete, making it a better material for building. This new concrete could change the ways of architecture while still being beneficial to the environment.

  8. My science in the news article was the effect and recovery of concussions in high school athletes. Research has shown that I takes about one month to heal from a concussion, but it could be longer for additional concussions.

  9. Scientists and engineers have developed sensors powered by the natural swaying of tree branches to detect when a wildfire has started. They were able to use static electricity from two cylinders rubbing and passing each other from the movement of these branches to power these sensors without having to use any other source. Whenever the sensors detect any signs of a wildfire, it would instantly relay the data to others to catch the fire before it would get out of hand.

  10. A group of scientists did an experiment to see how much color awareness people really have. They did this by putting students in virtual reality and erasing the majority of color from their peripheral vision, and barely any of the participants noticed, even when they had taken 70% of the color from what they were seeing. The scientists discovered from this that our minds have attentional bias which means we often ignore everything except the point our eyes focus on. They noted that this shows how oblivious we are to our surroundings and that we do not see the full reality of the world around us as we thought we did.

  11. My SITN was about a group of scientists working on a probe called OSIRIS-REx. They probe was meant to collect samples from the nearby asteroid Bennu. While studying the surface of the asteroid, the scientist found the surface to much less dense than on normal asteroids and the boulders on the surface were much more porous than usual. This was an exciting discovery, considering it is a new material never before seen on an asteroid.

  12. My SItN was about the Yale University study on Lyme disease. The scientists found a protein that warns the immune system.

  13. Astronomers used European Space Agency’s Gaia spacecraft to study the motions and orbits of seven dwarf galaxies around the Milky Way. They discovered that the Milky Way boosted star formation for the seven dwarf galaxies when they first entered into the realm of the Milky Way, but then the Milky Way sucked all of the gas out of the dwarf galaxies, preventing any further star formation.

  14. A Japanese materials chemist designed a drone with a bubble gun to spray bubbles onto plants in order to pollinate them. They tested the drones in a pear orchard by comparing the fruiting rate of pear blossoms pollinated by drones to ones pollinated by hand and by nature. They found the drones resulted in as much fruit as hand pollination but more fruit than natural pollination.

  15. Octopus can use there arms to taste and sense chemicals from preys. This keeps them safe and are able to hunt. This is a special trait of the octopus that’s the scientists research.

  16. As time goes on, the bottom of the ocean is getting warmer. Scientist have recorded the deepest part of the Atlantic for the the last decades, and records are showing its progressively warming up. Since we haven’t kept records long enough, we are unable to know the cause of this.

  17. A group of biologists discovered that platypuses fluoresce a green-blue color under ultraviolet light, but they cannot determine the purpose of their fluorescence. One biologist believes that a platypus’ fluoresce helps them camouflage themselves from predators, while another believes that this glow assists platypus in locating and communicating with each other.

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