Review Sheet for Test 1 - Review Sheet for Test 1 Produced...

Info icon This preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Review Sheet for Test 1 Produced by Yashar S. Niknafs Devout and Diligent Chemistry Students: The beginning of Chemistry 105 can be a flurry of pandemonium and confusion. My duty is to ensure your safety from the fury of Hurricane Kenney. This first test will cover fundamental information that will reappear frequently throughout the rest of this course and Chemistry 106. Thus, having a firm understanding of the content is important. I will provide a brief romp through chapters one, two, and three. I hope you find this sheet helpful. Yashar Chapter One: Key concepts If you have never taken chemistry before in your life, I would recommend reading through sections 1.1-1.6, but not focusing on these sections. These sections simply provide a brief overview of science in general, and will most likely not be directly tested. A general knowledge of the information in these sections is really good to have, but most of the information I am sure you have been hearing for many years. If you have already taken chemistry, I would recommend focusing all of your time on section 1.7. Dimensional analysis is such an incredibly integral aspect of science, and a solid comprehension of it will be necessary for your success here at Case (if you are a math or science major, or pre-health). You will see this method in Chem 105, 106, 113, and in your physics courses. Ultimately: If you cannot easily convert between semi-complex units (e.g. from m/s to mi/hr, or from moles to atoms, or from grams to moles, or from grams to atoms) please spend some time familiarizing yourself with this concept.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Some helpful tips: o Write your numbers as fractions E.g. o To convert, simply multiply your starting product by some form of one. What do I mean by some form of one? Well, if 1 yard = 3 feet, then is equal to one. o You will start with some unit, and have a target unit. So just keep multiplying by one, until you have your desired unit. Example : Convert 60 inches to feet. Starting unit: inches Target unit: feet Notice that multiplying by you are ultimately multiplying by one. If you want practice with this method, there are plenty in your book. Problems 1.31-1.40 are good review . The problems numbered in red are answered in the back of the book. Chapter Two: Key concepts Again, sections 2.1 and 2.2 provide a very fundamental review of the atom. If you have never taken chemistry, read these sections, and understand them, but do not dwell on them. 2.3: I feel that Dr. Kenney covered this section very well in class. If you still do not fully grasp the concept of atomic number vs. mass number, and what isotopes are, reread this section.
Image of page 2
Very briefly: Atomic number: number of protons Mass number: number of protons + number of neutrons (atomic number + number of neutrons) Isotope: Atoms of the same element with varying numbers of neutrons DO UNDERSTAND that the atomic mass given on the periodic table is an average of the occurrence of the different isotopes of a given element.
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern