Chapter_5 Sep_24 Lecture_15.pptx

Nomenclature 1 name the first element that appears in

This preview shows page 8 - 16 out of 16 pages.

- consist of just two different elements. Nomenclature: 1) Name the first element that appears in the formula. 2) Name the second element that appears in the formula, changing its ending to ide . 3) Use prefixes to indicate number of atoms of each element -Prefixes not used for ionic compound (except for hydrate) because charge of ions are known, thus can figure out the ratio of ions
Image of page 8

Subscribe to view the full document.

4) The prefix mono- is generally omitted for the first element. - the element on the left in a formula 5) For ease of pronunciation, we usually eliminate the last letter of a prefix that ends in “o” or “a ” when naming an oxide. Example: N 2 O 5 is dinitrogen pentoxide not dinitrogen penta oxide Naming Molecular Compounds
Image of page 9
Practice 1. Name the following binary molecular compounds: (a) NBr 3 and (b) N 2 O 4 . 2.Write the chemical formulas for the following binary molecular compounds: (a) sulfur tetrafluoride and (b) tetraphosphorus decasulfide. Solution 1. (a) nitrogen tribromide (b) dinitrogen tetroxide 2. (a) SF 4 (b) P 4 S 10
Image of page 10

Subscribe to view the full document.

Image of page 11
Some Common Names The names of molecular compounds containing hydrogen do not usually conform to the systematic nomenclature guidelines. Examples: B 2 H 6 Diborane SiH 4 Silane NH 3 Ammonia PH 3 Phosphine H 2 O Water H 2 S Hydrogen sulfide
Image of page 12

Subscribe to view the full document.

Familiar Inorganic Compounds
Image of page 13
Organic Compounds Our nomenclature discussion so far has focused on inorganic compounds , generally defined as those without carbon. Organic compounds contain carbon and hydrogen, sometimes in combination with other atoms. Hydrocarbons contain only carbon and hydrogen . The simplest hydrocarbons are called alkanes (have single bonds) .
Image of page 14

Subscribe to view the full document.

Alkanes and their names
Image of page 15
Organic Compounds—Functional Groups Many organic compounds contain groups of atoms known as functional groups , which often determine a molecule’s reactivity. Methanol (meth – 1 C, -ol, replace -H with -OH group on CH 4 to form CH 3 OH) Ethanol (2 C, -ol, -OH group, replace -H with -OH group on C 2 H 6 to form CH 3 CH 2 OH)
Image of page 16
You've reached the end of this preview.
  • Fall '16
  • hawk
  • Atom, Molecule, Ion, Chemical bond, Naming Molecular Compounds

{[ 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