lecture 5
... Physical Properties of Alkynes Alkynes are non polar compounds. Insoluble in water. Soluble in non polar organic solvents. They are less dense than water. Alkynes have low melting points and boiling points. Melting point and boiling point increase as the number of carbons increases. Termina ...
... Physical Properties of Alkynes Alkynes are non polar compounds. Insoluble in water. Soluble in non polar organic solvents. They are less dense than water. Alkynes have low melting points and boiling points. Melting point and boiling point increase as the number of carbons increases. Termina ...
Lecture 5
... 2 H2 + O2 → 2 H2O The chemical substances on the left of the equation are the ‘reactants’. The chemical substances on the right of the equation are the ‘products’. The numbers in front of the formulas are the coefficients. ...
... 2 H2 + O2 → 2 H2O The chemical substances on the left of the equation are the ‘reactants’. The chemical substances on the right of the equation are the ‘products’. The numbers in front of the formulas are the coefficients. ...
1 of 52
... The following questions represent the baseline knowledge you will need to succeed in AP Chemistry. The goal of this assignment is twofold. First, it will tell you what you are up against in the upcoming school year. Second, this assignment covers curriculum that is basic and will allow us the time t ...
... The following questions represent the baseline knowledge you will need to succeed in AP Chemistry. The goal of this assignment is twofold. First, it will tell you what you are up against in the upcoming school year. Second, this assignment covers curriculum that is basic and will allow us the time t ...
Unit-8-Alcohols-Aldehydes-Ketones
... In this unit we continue surveying some of the families of organic molecules that play important roles in biochemistry; looking both at their physical and chemical properties. The Group VIA elements, oxygen and sulfur, typically form two covalent bonds to attain a filled valence shell. The families ...
... In this unit we continue surveying some of the families of organic molecules that play important roles in biochemistry; looking both at their physical and chemical properties. The Group VIA elements, oxygen and sulfur, typically form two covalent bonds to attain a filled valence shell. The families ...
CHM203 - National Open University of Nigeria
... increase in the molecular weight. This can be explained due to increase in the London forces between the larger molecules of higher molecular weight. Thus, each additional methylene (-CH2) unit contributes to the increase in melting point. In a homologous series, the higher the molecular weight, the ...
... increase in the molecular weight. This can be explained due to increase in the London forces between the larger molecules of higher molecular weight. Thus, each additional methylene (-CH2) unit contributes to the increase in melting point. In a homologous series, the higher the molecular weight, the ...
CHEM 210 Nomenclature Lecture
... 3. Name and number the substituents. • Name the substituents as alkyl groups. • Every carbon belongs to either the longest chain or a substituent, not both. • Each substituent needs its own number • If two or more identical substituents are bonded to the longest chain, use prefixes to indicate how m ...
... 3. Name and number the substituents. • Name the substituents as alkyl groups. • Every carbon belongs to either the longest chain or a substituent, not both. • Each substituent needs its own number • If two or more identical substituents are bonded to the longest chain, use prefixes to indicate how m ...
Chapter 6: Moles, Molar Mass, Percent Composition and Formulas
... I is atomic # 53. How much does it weigh? 126.90 g/mol I Step 2: Determine how many of each element you have Look at the formula: ...
... I is atomic # 53. How much does it weigh? 126.90 g/mol I Step 2: Determine how many of each element you have Look at the formula: ...
Chemistry
... Differences between atoms give elements their different chemical properties. Atoms of one or more substances (reactants) undergo some ‘rearrangements’ during a chemical change (reaction). These rearrangements form new and different substances (products). After the chemical reaction, all the atoms of ...
... Differences between atoms give elements their different chemical properties. Atoms of one or more substances (reactants) undergo some ‘rearrangements’ during a chemical change (reaction). These rearrangements form new and different substances (products). After the chemical reaction, all the atoms of ...
Document
... The excess reagent is the one you have left over. The limiting reagent determines how much product you can make ...
... The excess reagent is the one you have left over. The limiting reagent determines how much product you can make ...
Chapter 25 Organic and Biological Chemistry
... Reactions of Aromatic Compounds • Unlike in alkenes and alkynes, electrons do not sit between two atoms. • Electrons are delocalized; this stabilizes aromatic compounds. Organic and Biological Chemistry ...
... Reactions of Aromatic Compounds • Unlike in alkenes and alkynes, electrons do not sit between two atoms. • Electrons are delocalized; this stabilizes aromatic compounds. Organic and Biological Chemistry ...
Chemistry: Matter and Change
... • A physical change alters the physical properties of a substance without changing its composition. • A chemical change, also known as a chemical reaction, involves a change in a substance’s composition. • In a chemical reaction, reactants form products. • The law of conservation of mass states that ...
... • A physical change alters the physical properties of a substance without changing its composition. • A chemical change, also known as a chemical reaction, involves a change in a substance’s composition. • In a chemical reaction, reactants form products. • The law of conservation of mass states that ...
L1 - Amines
... Compounds are named as substituted anilines. An italic “N” is used to indicate that an alkyl group is attached to the nitrogen and not to the ring. Examples: You are not responsible for naming aromatic amines ...
... Compounds are named as substituted anilines. An italic “N” is used to indicate that an alkyl group is attached to the nitrogen and not to the ring. Examples: You are not responsible for naming aromatic amines ...
Practice Test Material - Directorate of Education
... A welding gas contains carbon and hydrogen only. Burning a small sample of it in oxygen gives 3.38g carbon dioxide, 0.690g of water and no other products. A volume of 10.0L (measured at STP) of this welding gas is found to weigh 11.6g. Calculate : ...
... A welding gas contains carbon and hydrogen only. Burning a small sample of it in oxygen gives 3.38g carbon dioxide, 0.690g of water and no other products. A volume of 10.0L (measured at STP) of this welding gas is found to weigh 11.6g. Calculate : ...
Stoichiometry
... E.g: How many ml of 1 M HCl must be added to 50 ml of 0.5 M HCl to get a solution whose concentration is 0.6 M. no. of moles before mixing = no. of moles after mixing ( Y x1) + (50 x 0.5) = (Y + 50) x 0.6 ...
... E.g: How many ml of 1 M HCl must be added to 50 ml of 0.5 M HCl to get a solution whose concentration is 0.6 M. no. of moles before mixing = no. of moles after mixing ( Y x1) + (50 x 0.5) = (Y + 50) x 0.6 ...
Slide 1
... • Alkanes are hydrocarbons with only single bonds. – A straight-chain alkane has a long chain of carbons bonded to each other with hydrogen atoms around the outside. • Example: propane has three carbon atoms and 8 ...
... • Alkanes are hydrocarbons with only single bonds. – A straight-chain alkane has a long chain of carbons bonded to each other with hydrogen atoms around the outside. • Example: propane has three carbon atoms and 8 ...
Boiling Point of Liquids Procedures:
... offer information about its purity. Pure substances have a narrow boiling point range while mixtures may show multiple or broad ranged boiling temperatures. A number of definitions for boiling point appear in texts but offer little information about the underlying causes for the differences in bp be ...
... offer information about its purity. Pure substances have a narrow boiling point range while mixtures may show multiple or broad ranged boiling temperatures. A number of definitions for boiling point appear in texts but offer little information about the underlying causes for the differences in bp be ...
Thail 1 - University of Missouri
... 1. From first principles: ab initio calculations These calculation require a theoretical chemist. ...
... 1. From first principles: ab initio calculations These calculation require a theoretical chemist. ...
Alcohols - WordPress.com
... Alcohols are weak Brønsted bases Protonated by strong acids to yield oxonium ions, ...
... Alcohols are weak Brønsted bases Protonated by strong acids to yield oxonium ions, ...
Chapter 13 Organic Chemistry
... pentyl, etc., groups also exist, but there are more than one of each of these alkyl groups. For example, there are two different propyl groups that differ by the position of the removed hydrogen, which can come from a terminal carbon atom or from the middle carbon atom. We restrict our discussion of ...
... pentyl, etc., groups also exist, but there are more than one of each of these alkyl groups. For example, there are two different propyl groups that differ by the position of the removed hydrogen, which can come from a terminal carbon atom or from the middle carbon atom. We restrict our discussion of ...
Chemistry Unit 1
... urea by Friedrich Wöhler and subsequent synthesis of other organic compounds marked the downfall of the ‘life force’ theory. How do you explain organic compounds at present and define organic chemistry? The common feature of organic compounds is that they all contain the element carbon. Organic comp ...
... urea by Friedrich Wöhler and subsequent synthesis of other organic compounds marked the downfall of the ‘life force’ theory. How do you explain organic compounds at present and define organic chemistry? The common feature of organic compounds is that they all contain the element carbon. Organic comp ...
Bioaugmentation-A Strategy For Cleaning Up Soil
... negligent disposal has resulted in contamination. The pollutants are released from oil refineries, gas stations, and use of wood preservatives, pharmaceuticals and petrochemical industries. The presence of these chemicals poses a serious threat to human kind because of their ability to accumulate in ...
... negligent disposal has resulted in contamination. The pollutants are released from oil refineries, gas stations, and use of wood preservatives, pharmaceuticals and petrochemical industries. The presence of these chemicals poses a serious threat to human kind because of their ability to accumulate in ...
Chemical Equations Chemical Reaction: Interaction between
... the uptake of serotonin by the brain. What is the molar mass of ...
... the uptake of serotonin by the brain. What is the molar mass of ...
Organosulfur compounds
Organosulfur compounds are organic compounds that contain sulfur. They are often associated with foul odors, but many of the sweetest compounds known are organosulfur derivatives, e.g., saccharin. Nature abounds with organosulfur compounds—sulfur is essential for life. Of the 20 common amino acids, two (cysteine and methionine) are organosulfur compounds, and the antibiotics penicillin (pictured below) and sulfa drugs both contain sulfur. While sulfur-containing antibiotics save many lives, sulfur mustard is a deadly chemical warfare agent. Fossil fuels, coal, petroleum, and natural gas, which are derived from ancient organisms, necessarily contain organosulfur compounds, the removal of which is a major focus of oil refineries.Sulfur shares the chalcogen group with oxygen, selenium and tellurium, and it is expected that organosulfur compounds have similarities with carbon–oxygen, carbon–selenium and carbon–tellurium compounds, which is true to some extent.A classical chemical test for the detection of sulfur compounds is the Carius halogen method.