Anthony Martinez Mr. Hruby Chemistry R Period 4(5A) Name & Symbol: Platinum (Pt) Properties: -Atomic Number: 78 -Atomic Mass: 195.084 amu -Appearance: Shiny‚ smooth surface‚ silver like‚ solid. Melting point (K): 2045 Boiling point (K): 4100 Valence electrons: (+1)‚ +2‚ (+3)‚ +4‚ +6 Atomic radius (pm): 139 1st Ionization energy (kJ/mol): 868.1 Electronegativity: 2.28 Natural Occurring Isotopes: Six stable isotopes of platinum occur in nature (190‚ 192‚ 194
Premium Periodic table Transition metal
The Chemistry of Lipids Experiment #8 Objective To observe the solubility of lipids in polar and nonpolar solvents and to compare saturated and unsaturated fats in their chemical reaction with bromine. The percent fat in a food will be determined by extraction of the fat and weighing it. Introduction Lipids‚ by definition‚ are natural substances that do not mix with water but dissolve in organic solvents. There are several classes of lipids‚ including: fatty acids‚ waxes‚ triacylglycerols
Premium Fatty acid Fat Unsaturated fat
Chemistry 200 Exam 1 Review Problems 1. Calculate the number of atoms in 10.0 grams of Fe. 2. Give the mass number‚ #protons‚ #neutrons and #electrons for the isotope strontium-88. 3. Calculate the number of moles of carbon in 50.0 g of benzene C6H6 4. A substance is found to be 38.7 % C‚ 9.7 % H and 51.6 % O by mass. Its molar mass is 62.1 g/mole. What is its molecular formula? 5. Name the following: a) Ca(OH)2 b) KCN c) HClO4(aq) d) FeSO4 e) Na2O f) SF6 g)
Premium Oxygen Sodium hydroxide Mass
Al Salam Hospital Prepared by: Ban Faisal‚ Mariam Riad‚ Nancy Mustafa‚ Mohamed Magdy Al Kady Prepared for: Dr. Ahmed Dief Date: January 10th‚ 2012 Table Of Contents | | Page | Executive Summary | 2 | Process Description at Al Salam Hospital | 2 | Service concept | 4 | Target Market Segment | 5 | Distinctive Characteristics of the Service at Al-Salam | 5 | The service package | 6 | The Service’s Strategic Insights | 7 | An open systems view of service | 9 | Service delivery
Premium Physician Hospital Patient
Standardize a solution of potassium manganate(VII) by an iron (II) salt (ammonium iron (II) sulphate) Introduction Oxidation numbers describe the number of electrons the atom will gain or lose during a reaction. Each atom in an equation can be assigned an oxidation number according to certain rules. If the oxidation number of an atom increases as you go from the left side to the right side if an equation‚ oxidation has occurred (electrons have been lost); if the oxidation number decreases
Premium Potassium permanganate Manganese Oxidizing agent
CLINICAL CHEMISTRY – defined as the study of biochemical processes associated with health & dse & the measurement of constituents in body fluids or tissues to facilitate dx of dse - dual nature since it’s both a basic and applied science thus clin chem. technologists & technicians should have an understanding of the physiologic & biochemical processes occurring in the body‚ as well as technical skills to perform the various tests - chemistry in connection with the management
Premium Concentration Blood Chemistry
Television‚ Violence‚ and Children Author: Carla Kalin Master of Science‚ Synthesis Paper‚ June‚ 1997 Dept. Educational Leadership‚ Technology‚ and Administration College of Education‚ University of Oregon Copyrighted 1997 by Carla Kalin All Rights Reserved INTRODUCTION The setting for my first four years of teaching was a school of 1‚400 students in the inner city of Oakland‚ California. One of the many challenges I faced as one of the eight kindergarten teachers on staff was attempting to curb
Premium Television Television network Television program
Everything you need to know about hydrocarbons INTRODUCTION: organic chemistry Organic chemistry is the chemistry of compounds that contain carbon and hydrogen. The element carbon has a special role in chemistry because it bonds with other carbon atoms to give a vast array of molecules. The varity of molecules is so great that we find organic compounds in many common products we use‚ such as gasoline‚ medicines‚ shampoos‚ plastic bottles‚ and perfumes. The food we eat is composed of different
Premium Methane Carbon Hydrocarbon
Match and Water in a Glass Science Magic Trick Fun Trick with Fire and Water This is a simple and interesting science magic trick involving fire and water. All you need is water‚ a glass‚ a plate‚ and a couple of matches. Pour water into a plate‚ light a match in the center of the dish and cover it with a glass. The water will be drawn into the glass. Match and Water Trick Materials • plate • water • 2 wooden matches • a quarter or other large coin • colored water
Premium Liquid Zinc Match
Disease Amyotrophic Lateral Sclerosis (ALS)‚ otherwise known as " Lou Gehrig’s Disease "‚ is a devastating disease that effects the nerve cells in the brain and spinal cord. French neurologist‚ Jean-Martin Charcot‚ first discovered the disease in 1869. Attention was not brought to the disease until 1939‚ when New York Yankees first basemen Lou Gehrig retired because of his diagnosis (4). Specifically referred to as a "neurodegenerative disease"‚ ALS is the lack of nourishment to muscles (5).
Premium Amyotrophic lateral sclerosis Muscle Neuron