Today we can celebrate the SI unit of amount of substance, the mole of items [with symbol: mol items], which specifies the number of formula units in a given amount of substance. The mole unit is special because chemists use the concept of moles to measure the relative amounts of reactant and product formula units needed to produce a given amount of product. By use of the mole concept, we can measure out and count the extremely small and numerous submicroscopic formula units in the laboratory.
By definition, 6.022 x 1023 items of any kind is called a mole of items just as a group of 12 items of any kind is called a dozen of those items. This number, 6.022 x 1023, is named the Avogadro number in honor of an early chemist by the name of Amadeo Avogadro (who was the first person to clearly distinguish the concept of atoms from the concept of molecules). The reason Mole Day...
LARN 172 C43D4
The End-of-Year Examination will focus on concepts and skills taught with chapters 11 through 20. Parts I and II of the End of Year Examination, the Open Ended Response and the Selected Response sections, will be given during your regular class period on the day announced in class.
Start the following in class:
1. Download and open the Unit Learning Objectives document, press and hold the CTRL key while typing F to bring up a search (find) box. Type in Chapter 22 in the search box and then move your cursor into the text area to the right and click there to see the first page of objectives.
2. Take the following online assessments and research anything that you do not understand, haven’t previously studied, or has to do with what you studied when you took biology before chemistry.
Go to http://www.phschool.com/webcodes10/index.cfm?wcprefix=cda&wcsuffix=1220&area=view and take an online formative test for chapter 22, Hydrocarbons. Then click on the Score My Test button and study anything that...
LARN 176 C44D4 [172]
The End-of-Year Examination will cover the whole year but focus on concepts and skills taught with chapters 11 through 20. Parts I and II of the End of Year Examination, the Open Ended Response and the Selected Response sections, will be given during the time slots assigned to your class by the MNHS Final Exam Schedule. See LARN 169 for more information.
Start the following in class:
1.a. As part of your preparation for the End-of-Year Examination, review the study guides at the end of chapters one through twenty in your text together with the Honors Chemistry Topics study guide packets passed out for the mid-year and end of year examinations. If lost or misplaced, these documents are available online on your MNSD Google drive > Student Resources > Handouts > LARN 082.1 Mid-Year Review and MNSD Google drive > Student Resources > Handouts > LARN 170 End of Year Review.
1.b. Study the vocabulary sheet, section reviews, and formative...
