Chem Lab report 1 - Chem lab 1 PDF

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Chem lab 1...

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Meghan Rye 02/03/18 Lab 1: What is around us? “Chemistry is Life” Introduction: The components of chemistry are directly involved in our everyday life. The way that different atoms combine determines the functions of many things around us. When the combination of atoms occurs, it is important that they orient correctly, or the compounds created would be dysfunctional or totally incompatible to begin with. Since chemistry is important to our daily lives, we need to understand how it works in order to make decisions on medications you should take, what affects your environment, among other crucial life decisions. This experiment focused on the naming of the different types of compounds. The rules given for the correct nomenclature of both ionic and molecular compounds were implemented to ensure the resulting names and formulas were valid. Materials:  Periodic Table- used to determine the correct name and charge of different elements.  Pen  Paper Observations and Experimental: List of 8 elements (with their symbols) chosen from the periodic table: Metals: Type I: Barium (Ba) Lithium (Li) Type II: Iron (III) (Fe 3+) Silver (II) (Ag 2+)

Name of Ionic Compound

Chemical Equation of Ionic Compound

Ammonium Oxide (NH4)2O Ammonium (NH4)2S Sulfide Ammonium (NH4)3N

Non-metals: Chlorine (Cl) Bromine (Br) Phosphorus (P) Sulfur (S)

Hydrochloric acid Hydroiodic acid

Chemical Equation of Molecular Compound HCl HI

Hydrobromic acid

HBr

Name of Molecular Compound

Nitride Ammonium Fluoride Ammonium Bromide Ammonium Iodide Titanium (III) Chloride Zinc (II) Phosphide Gold (III) Oxide Copper (II) Chloride Vanadium (III) Nitride Platinum (IV) Oxide Tin (II) Bromide Mercury (II) Oxide Cobalt (II) Nitride Nickel (II) Iodide

NH4F

Hydrofluoric acid

HF

NH4Br

Nitrous acid

HNO2

NH4I

Phosphoric acid

H3PO4

TiCl3

Sulfurous acid

H2SO3

Zn3P2

Chloric acid

HClO3

Au2O3 CuCl2

Sulfuric acid Carbonic acid

H2SO4 H2CO3

VN

Carbon Monoxide

CO

PtO2

Phosphorus Pentasulfide Oxygen Fluoride Dichlorine Monoxide Silicon Phosphate Selenium Hexafluoride Carbon Tetrachloride Arsenic Trichloride Sulfur Hexafluoride Dichlorine Heptoxide Carbon Dioxide

P4S10

SnBr2 HgO Co3N2 NiI2

Barium Sulfide

BaS

Aluminum Oxide

Al2O3

Calcium Chloride

CaCl2

Sodium Nitrate

NaNO3

Lithium Hydroxide Strontium Iodide

LiOH

Magnesium Sulfate Beryllium

MgSO4

NaI

BeSe

Diphosphorus pentoxide Dinitrogen Tetroxide Iodine

OF2 Cl2O

SeF6 CCl4 AsCl3 SF6 Cl2O7 CO2 P4O10 N2O4 IF7

Selenide Potassium Carbonate

K2CO3

Heptafluoride Tetraarsenic decoxide

P4O10

Discussion and Conclusion: This experiment allowed for the correct naming of chemical compounds. There are a number of different rules that govern the ways that ionic and molecular compounds combine. When naming ionic compounds, you must first denote the name of the cation, followed by the name of the anion. The cation may either be Ammonium, a type I cation or type II cation (also called a transition metal). When combing a type II cation with an anion the name must include roman numerals which represent the charge on the metal. If the connecting anion is monoatomic then -ide is added to the end of the anion. If the anion is polyatomic, the ionic compound would end with -ate, -ite, for example. In the case of a molecular compound, it can either be an acid (Hydrogen joined to a Halogen or a Polyatomic ion), or not an acid with there simply being a covalent bond between two nonmetals. In this case where the molecular compound is not an acid, the name of the first atom must have a prefix to indicate the number of atoms involved, and the second atom will be written with a prefix and -ide at the end. Focus Questions: 1) How many types of compounds do you know? 2 types: Ionic compounds and covalent compounds 2) When naming different types of compounds do you need to follow different rules? Yes 3) Does it matter in which way you combine your elements? Yes 4) Any law you can mention in term of forming compounds? Ionic compounds must start with a positively charged ion combined with a negatively charged ion. Reference: Chemistry 106 “General Chemistry Laboratory” by G. Smeureanu and S. Geegier. Post Lab Questions: 1) a. barium and hydroxide – Ba(OH)2 b. cobalt (III) and Oxygen – Co2O3 c. iron (III) and sulfate – Fe2(SO4)3 2) a. PtBr2 and PtBr4 b. PtCO3 and Pt(CO3)2

c. Pt(NO3)2 and Pt(NO3)4 3) a. N2O3 – Dinitrogen Trioxide b. AlCl3 – Aluminum Chloride c. CH4 – Methane d. MnO2 – Manganese Dioxide 4) a. Nitrogen trichloride – NCl3 b. Chlorine dioxide – ClO2 c. Nickel (II) nitrate – Ni(NO3)2 d. Calcium oxide – CaO...