Chemistry 2-22-23 Stoichiometry Homework

CHEMISTRY: So how did you do with the stoichiometry problems on your own? Do you find that working these problem is kind of like following a map – and making sure you have the right passport before you try to get in to the next country?!

Good job today! Here’s a look at some of the problems from homework last night. Be sure and get the answers at the beginning so you can go back and work these problems and more to practice for the test!


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8 thoughts on “Chemistry 2-22-23 Stoichiometry Homework

  1. The article I read is about how the Milky Way may be creating more stars than astronomers thought. It talks about how Siegert and his colleagues studied the
    spatial distribution and recent intensity of emission from aluminum-26 in our galaxy. It also talks about how the more stars created, the more gamma rays emerge. Thus as more time elapsed, the more stars are created and gamma rays emerged.

    https://www.sciencenews.org/article/milky-way-star-formation-astronomy

  2. I read about how animals that are at risk for extinction are connected to the human cultures around them and how it affects them. The example in this article was about the dugong. They are on the endangered list because of the how the people around them are being forced to leave their homes because of rising sea levels and temperature changes. The Torres Straight Islanders have always hunted and kept count of the dugong population near their homes, so the numbers remained stable. The people leaving results in the population of the dugons not being watched over. This type of thing is happening globally. The scientist way of trying to fix this problem is by keeping watch on the cultures surrounding the environment and when the culture starts to dwindle.

    https://www.sciencenews.org/article/new-metric-extinction-risk-species

  3. I read about googles quantum computer that fixed an error correcting miles stone. It did this by using more qubits. qubits, that make up a quantum computer are prone to mistakes that could render a calculation useless if not corrected. To reduce that error rate, scientists aim to build a computer that can correct its own errors, and that’s exactly what google did. In the near future we can expect newer quantum computers to solve even the hardest problems the best computers of our time couldn’t.

    https://www.sciencenews.org/article/google-quantum-computer-sycamore-milestone

  4. I read about these miniature shape shifting metals that can change from liquid to solid and then reverse it. You can thank metal gallium for this crazy invention. The inspiration were sea cucumbers so the scientists based the properties the metals have off of those. These metals can be used for so much.

  5. I read the Milky Way is churning out far more stars than previously thought, according to a new estimate of its star formation rate. Gamma rays from aluminum-26, a radioactive isotope that arises primarily from massive stars, reveal that the Milky Way converts four to eight solar masses of interstellar gas and dust into new stars each year. That range is two to four times the conventional estimate and corresponds to an annual birthrate in our galaxy of about 10 to 20 stars, because most stars are less massive than the sun.

    https://www.sciencenews.org/article/milky-way-star-formation-astronomy

  6. The James Webb space telescope has discovered distant galaxies which appear to be too big for their predicted age. By measuring how much light the stars in this galaxy produce, scientists were about to determine that the galaxy was 100 times bigger than predictions. This possibly disproves the theory of a Big Bang, because those universes should only be 700 million years old according to their predictions. Scientists are trying to test if there is a supermassive black hole at the center creating that galaxy.

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