Chemistry- The Gas Phase
... Ideal Gas: a hypothetical gas whose pressurevolume-temperature behavior can be completely accounted for the ideal gas equation. (molecules or atoms of gas don’t interact with each other at all) This happens when: 1. Volume of container is large compared to the V of the gas (P is low) 2. Molecules o ...
... Ideal Gas: a hypothetical gas whose pressurevolume-temperature behavior can be completely accounted for the ideal gas equation. (molecules or atoms of gas don’t interact with each other at all) This happens when: 1. Volume of container is large compared to the V of the gas (P is low) 2. Molecules o ...
Barnard Castle School Chemistry Department
... Be familiar with the names and symbols of the 1st 20 elements in the Periodic Table (ie. H, He, B, Be …….to Ca). Compounds have very different properties to the elements from which they are formed. It is often difficult to break compounds up into their elements (because the atoms are chemically join ...
... Be familiar with the names and symbols of the 1st 20 elements in the Periodic Table (ie. H, He, B, Be …….to Ca). Compounds have very different properties to the elements from which they are formed. It is often difficult to break compounds up into their elements (because the atoms are chemically join ...
Name ______Mr. Perfect_______________________________
... 7. A syringe containing 1.55 mL of oxygen gas is cooled from 95.3 °C to 0.0 °C. What is the final volume of the oxygen gas in the syringe? Assume the pressure remains constant. (5 pts) T1 = 95.3 + 273 = 368.3 K T2 = 0.0 + 273 = 273 K ...
... 7. A syringe containing 1.55 mL of oxygen gas is cooled from 95.3 °C to 0.0 °C. What is the final volume of the oxygen gas in the syringe? Assume the pressure remains constant. (5 pts) T1 = 95.3 + 273 = 368.3 K T2 = 0.0 + 273 = 273 K ...
Practice Questions
... b. X-rays and gamma rays exciting nitrogen and oxygen gas molecules in the lower atmosphere. c. Infrared radiation being absorbed by certain trace gas molecules in the lower atmosphere. d. The very high temperature of the molten inner core of the Earth which is composed mostly of iron. Not all molec ...
... b. X-rays and gamma rays exciting nitrogen and oxygen gas molecules in the lower atmosphere. c. Infrared radiation being absorbed by certain trace gas molecules in the lower atmosphere. d. The very high temperature of the molten inner core of the Earth which is composed mostly of iron. Not all molec ...
PROPERTIES_OF_MATTER
... • Ionic bond (electrostatic attraction that binds oppositely charged ions) – Usually composed of metal and nonmetal atoms ...
... • Ionic bond (electrostatic attraction that binds oppositely charged ions) – Usually composed of metal and nonmetal atoms ...
METHODOLOGY FOR RESIDUAL OXYGEN CALORIMETRY
... Sample Gas + Oxygen + Nitrogen → Water + Carbon Dioxide + Nitrogen + Heat To assure complete combustion of a gas, the combustion process is ran at higher oxygen levels than needed to theoretically burn all of the gas given the range and variability of the gas constituent(s) molar percentage content ...
... Sample Gas + Oxygen + Nitrogen → Water + Carbon Dioxide + Nitrogen + Heat To assure complete combustion of a gas, the combustion process is ran at higher oxygen levels than needed to theoretically burn all of the gas given the range and variability of the gas constituent(s) molar percentage content ...
review sheet
... 14. Where will water boil at a lower temperature 250 feet or 10,000 feet above sea level? _____________________________________________ Why?_____________________ 15. Explain on the molecular level how solids, liquids and gases compare. Which has the most kinetic energy? ...
... 14. Where will water boil at a lower temperature 250 feet or 10,000 feet above sea level? _____________________________________________ Why?_____________________ 15. Explain on the molecular level how solids, liquids and gases compare. Which has the most kinetic energy? ...
Name______________________ Period________
... 30. According to the Dual Nature of Light, light acts as a __________________ and a _________________. ...
... 30. According to the Dual Nature of Light, light acts as a __________________ and a _________________. ...
Final Exam Review – Free Response Section Name: 1. A sample of
... If it is a single displacement reaction, use the activity series to determine if it will occur. If it will not occur, write “no reaction.” If it is a double displacement, use the solubility rules to determine if it will occur. If it will not occur, write “no reaction.” If it will occur, write the ba ...
... If it is a single displacement reaction, use the activity series to determine if it will occur. If it will not occur, write “no reaction.” If it is a double displacement, use the solubility rules to determine if it will occur. If it will not occur, write “no reaction.” If it will occur, write the ba ...
Lab Stuff - WW-P K
... 4. Compounds can be isomers if they have the same molecular formula, but different structural formulas. 5. Hydrocarbons can be evaluated as possible fuel sources by examining their heats of combustion. 6. Energy values can be inserted into a balanced chemical equation. 7. The specific heat of a subs ...
... 4. Compounds can be isomers if they have the same molecular formula, but different structural formulas. 5. Hydrocarbons can be evaluated as possible fuel sources by examining their heats of combustion. 6. Energy values can be inserted into a balanced chemical equation. 7. The specific heat of a subs ...
FINAL EXAM REVIEW PROBLEMS
... 55. What volume of 12 M HCl must be taken to prepare 0.75 L of 0.45 M HCl? 56. When aqueous Na2SO4 and Pb(NO3)2 are mixed, PbSO4 precipitates. Calculate the PbSO4 formed when 1.25 L of 0.0500 M Pb(NO 3)2 and 2.00 L of 0.0250 M Na2SO4 are mixed. 57. Calculate the volume of 0.10 M HNO3 needed to neutr ...
... 55. What volume of 12 M HCl must be taken to prepare 0.75 L of 0.45 M HCl? 56. When aqueous Na2SO4 and Pb(NO3)2 are mixed, PbSO4 precipitates. Calculate the PbSO4 formed when 1.25 L of 0.0500 M Pb(NO 3)2 and 2.00 L of 0.0250 M Na2SO4 are mixed. 57. Calculate the volume of 0.10 M HNO3 needed to neutr ...
Matter 1. ______ is anything that has ______ and takes up ______
... 7. Classification of Matter – matter can be classified by its physical and chemical properties. a _______________ _________________– a characteristic of a substance that can be observed without changing the substance into another substance. Examples: physical state (solid, liquid, gas) electrical an ...
... 7. Classification of Matter – matter can be classified by its physical and chemical properties. a _______________ _________________– a characteristic of a substance that can be observed without changing the substance into another substance. Examples: physical state (solid, liquid, gas) electrical an ...
CHEM 150
... a. the mass of the sample b. the shape the sample c. the temperature of the sample d. the volume of the sample ____ 27. Chloroform has a normal boiling point of 61.7oC. Which of the following is true? a. at any temperature the vapor pressure of chloroform is greater than that of water b. chloroform ...
... a. the mass of the sample b. the shape the sample c. the temperature of the sample d. the volume of the sample ____ 27. Chloroform has a normal boiling point of 61.7oC. Which of the following is true? a. at any temperature the vapor pressure of chloroform is greater than that of water b. chloroform ...
Chapter 1 - TamAPChemistryHart
... air. The balloon thus weighs less than the air displaced by its volume. d) Because helium has a lower molar mass than the average air molecule, the helium atoms are in faster motion. This means that the temperature of the helium is higher than the air temperature. Hot gases tend to rise. ...
... air. The balloon thus weighs less than the air displaced by its volume. d) Because helium has a lower molar mass than the average air molecule, the helium atoms are in faster motion. This means that the temperature of the helium is higher than the air temperature. Hot gases tend to rise. ...
33 C? (1)
... ___ 109. When the vapor pressure of a liquid in an open container equals the atmospheric pressure then the liquid will (1) freeze; (2) crystallize; (3) melt; (4) boil. ___ 110. In a closed system, as the temperature of a liquid increases, the kinetic energy of its molecules (1) decreases; (2) increa ...
... ___ 109. When the vapor pressure of a liquid in an open container equals the atmospheric pressure then the liquid will (1) freeze; (2) crystallize; (3) melt; (4) boil. ___ 110. In a closed system, as the temperature of a liquid increases, the kinetic energy of its molecules (1) decreases; (2) increa ...
Lab Stuff
... 4. Compounds can be isomers if they have the same molecular formula, but different structural formulas. 5. Hydrocarbons can be evaluated as possible fuel sources by examining their heats of combustion. 6. Energy values can be inserted into a balanced chemical equation. 7. The specific heat of a subs ...
... 4. Compounds can be isomers if they have the same molecular formula, but different structural formulas. 5. Hydrocarbons can be evaluated as possible fuel sources by examining their heats of combustion. 6. Energy values can be inserted into a balanced chemical equation. 7. The specific heat of a subs ...
Lab Stuff:
... 4. Compounds can be isomers if they have the same molecular formula, but different structural formulas. 5. Hydrocarbons can be evaluated as possible fuel sources by examining their heats of combustion. 6. Energy values can be inserted into a balanced chemical equation. 7. The specific heat of a subs ...
... 4. Compounds can be isomers if they have the same molecular formula, but different structural formulas. 5. Hydrocarbons can be evaluated as possible fuel sources by examining their heats of combustion. 6. Energy values can be inserted into a balanced chemical equation. 7. The specific heat of a subs ...
Academic Chemistry Final Exam Review
... 0.454 atm at a temperature of -15oC and a volume of 3.48L. If conditions are changes to those of STP, what will be the new volume of the sample? ...
... 0.454 atm at a temperature of -15oC and a volume of 3.48L. If conditions are changes to those of STP, what will be the new volume of the sample? ...
Matter
... • Combo of 2 or more pure substances • Physically combined not chemically combined • Each substance retains its own identity and properties ...
... • Combo of 2 or more pure substances • Physically combined not chemically combined • Each substance retains its own identity and properties ...
Chem 1A Practice Final
... the absolute temperature and pressure are each doubled? a) 40.00 mL b) 80.00 mL c) 160.0 mL d) 320.0 mL e) 640.0 mL 20. Body temperature is about 308 K. On a cold day, what volume of air at 273 K must a person with a lung capacity of 2.00 L breathe in to fill the lungs? a) 2.26 L b) 1.77 L c) 1.13 L ...
... the absolute temperature and pressure are each doubled? a) 40.00 mL b) 80.00 mL c) 160.0 mL d) 320.0 mL e) 640.0 mL 20. Body temperature is about 308 K. On a cold day, what volume of air at 273 K must a person with a lung capacity of 2.00 L breathe in to fill the lungs? a) 2.26 L b) 1.77 L c) 1.13 L ...
Chemistry 332
... Physical and Chemical Properties and Changes: 1. What are examples of physical properties? 2. What are examples of chemical properties? 3. What is a physical change? 4. What is a chemical change? 5. Determine if the following are physical or chemical changes: a. aluminum foil is torn into small piec ...
... Physical and Chemical Properties and Changes: 1. What are examples of physical properties? 2. What are examples of chemical properties? 3. What is a physical change? 4. What is a chemical change? 5. Determine if the following are physical or chemical changes: a. aluminum foil is torn into small piec ...
Integrated Gasification Combined Cycles
... • An important area of IGCC technology improvement is the optimization of the design and integration among the various components of the complex. • Integration means recovery of the waste energy available, improvement of the efficiency and, where possible, reduction of the investment cost. • There a ...
... • An important area of IGCC technology improvement is the optimization of the design and integration among the various components of the complex. • Integration means recovery of the waste energy available, improvement of the efficiency and, where possible, reduction of the investment cost. • There a ...
Gas chromatography
Gas chromatography (GC) is a common type of chromatography used in analytical chemistry for separating and analyzing compounds that can be vaporized without decomposition. Typical uses of GC include testing the purity of a particular substance, or separating the different components of a mixture (the relative amounts of such components can also be determined). In some situations, GC may help in identifying a compound. In preparative chromatography, GC can be used to prepare pure compounds from a mixture.In gas chromatography, the mobile phase (or ""moving phase"") is a carrier gas, usually an inert gas such as helium or an unreactive gas such as nitrogen. The stationary phase is a microscopic layer of liquid or polymer on an inert solid support, inside a piece of glass or metal tubing called a column (a homage to the fractionating column used in distillation). The instrument used to perform gas chromatography is called a gas chromatograph (or ""aerograph"", ""gas separator"").The gaseous compounds being analyzed interact with the walls of the column, which is coated with a stationary phase. This causes each compound to elute at a different time, known as the retention time of the compound. The comparison of retention times is what gives GC its analytical usefulness.Gas chromatography is in principle similar to column chromatography (as well as other forms of chromatography, such as HPLC, TLC), but has several notable differences. First, the process of separating the compounds in a mixture is carried out between a liquid stationary phase and a gas mobile phase, whereas in column chromatography the stationary phase is a solid and the mobile phase is a liquid. (Hence the full name of the procedure is ""Gas–liquid chromatography"", referring to the mobile and stationary phases, respectively.) Second, the column through which the gas phase passes is located in an oven where the temperature of the gas can be controlled, whereas column chromatography (typically) has no such temperature control. Finally, the concentration of a compound in the gas phase is solely a function of the vapor pressure of the gas.Gas chromatography is also similar to fractional distillation, since both processes separate the components of a mixture primarily based on boiling point (or vapor pressure) differences. However, fractional distillation is typically used to separate components of a mixture on a large scale, whereas GC can be used on a much smaller scale (i.e. microscale).Gas chromatography is also sometimes known as vapor-phase chromatography (VPC), or gas–liquid partition chromatography (GLPC). These alternative names, as well as their respective abbreviations, are frequently used in scientific literature. Strictly speaking, GLPC is the most correct terminology, and is thus preferred by many authors.