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 ...
AP Chem Test 5 preview Gases
... the partial pressure of Ar in the flask is 2.00 atm. The temperature is 127 oC. a.) Calculate the total pressure in the flask. b.) Calculate the mole fraction of H2 in the flask. c.) Calculate the density (in g L-1) of the mixture in the flask. The mixture in the flask is ignited by a spark, and the ...
... the partial pressure of Ar in the flask is 2.00 atm. The temperature is 127 oC. a.) Calculate the total pressure in the flask. b.) Calculate the mole fraction of H2 in the flask. c.) Calculate the density (in g L-1) of the mixture in the flask. The mixture in the flask is ignited by a spark, and the ...
Exam 3 - Canvas by Instructure
... A. For both gases studied, the difference between the real pressure and the ideal pressure becomes more substantial when moving from State 1 to State 2. Explain why the deviation from ideal behavior would increase moving from State 1 to State 2. Include in your response a discussion of the character ...
... A. For both gases studied, the difference between the real pressure and the ideal pressure becomes more substantial when moving from State 1 to State 2. Explain why the deviation from ideal behavior would increase moving from State 1 to State 2. Include in your response a discussion of the character ...
Review of Moles and Stoichiometry
... 13.) A sample of urea contains 1.121 g N, 0.161 g H, 0.480 g C, and 0.640 g O. a.) By mass, what percent of urea is C and what percent is O? ...
... 13.) A sample of urea contains 1.121 g N, 0.161 g H, 0.480 g C, and 0.640 g O. a.) By mass, what percent of urea is C and what percent is O? ...
Chapter 1: Matter, Measurement and Problem Solving
... Molecules have a lot of space between them Free to move Compressible: forcing gas into a small container No fixed volume: volume of the container No fixed shape: take the shape of container Examples: Helium and Nitrogen ...
... Molecules have a lot of space between them Free to move Compressible: forcing gas into a small container No fixed volume: volume of the container No fixed shape: take the shape of container Examples: Helium and Nitrogen ...
CHEMISTRY 102A/102C Spring 2014 Hour Exam II Page _____ For
... a) Compounds that can H-bond have higher boiling points than ionic compounds. b) A compound must contain a CH, NH, OH, or FH covalent bond in the molecule in order to Hbond. c) Given two covalent compounds having about the same molar mass, the compound that can Hbond will have the higher vapor ...
... a) Compounds that can H-bond have higher boiling points than ionic compounds. b) A compound must contain a CH, NH, OH, or FH covalent bond in the molecule in order to Hbond. c) Given two covalent compounds having about the same molar mass, the compound that can Hbond will have the higher vapor ...
Analytical Chemistry/Pharmaceutical Analysis
... A qualitative analysis determines the presence or absence of a particular compound, but not the mass or concentration. That is, it is not related to quantity. Chemical tests There are numerous qualitative chemical tests, for example, the acid test for gold and the Kastle-Meyer test for the presence ...
... A qualitative analysis determines the presence or absence of a particular compound, but not the mass or concentration. That is, it is not related to quantity. Chemical tests There are numerous qualitative chemical tests, for example, the acid test for gold and the Kastle-Meyer test for the presence ...
What is Chemistry
... • Results in the formation of a new substances – A chemical reaction takes place • Evidence that a chemical reaction has taken place – Change in energy • Temperature increase or decrease – Production of a gas • Formation of bubbles or detection of odor – Formation of a precipitate • Presence of a so ...
... • Results in the formation of a new substances – A chemical reaction takes place • Evidence that a chemical reaction has taken place – Change in energy • Temperature increase or decrease – Production of a gas • Formation of bubbles or detection of odor – Formation of a precipitate • Presence of a so ...
Exam Review
... c) Al(NO3)3 (aq) + Na2SO4 (aq) d) CuSO4 (aq) + NH4Cl (aq) 10. Write the net ionic equation for each of the following: a) BaCl2(aq) + Na2SO4(aq) BaSO4(s) + 2 NaCl(aq) b) CuSO4(aq) + 2 AgNO3(aq) Ag2SO4(s) + Cu(NO3)2(aq) c) Pb(NO3)2(aq) + 2 KI(aq) PbI2(s) + 2 KNO3(aq) 11. Write a balanced chemica ...
... c) Al(NO3)3 (aq) + Na2SO4 (aq) d) CuSO4 (aq) + NH4Cl (aq) 10. Write the net ionic equation for each of the following: a) BaCl2(aq) + Na2SO4(aq) BaSO4(s) + 2 NaCl(aq) b) CuSO4(aq) + 2 AgNO3(aq) Ag2SO4(s) + Cu(NO3)2(aq) c) Pb(NO3)2(aq) + 2 KI(aq) PbI2(s) + 2 KNO3(aq) 11. Write a balanced chemica ...
Chemistry I Final Exam Review Problems 2016
... a. 4H2 O c. H2 SO4 b. 3CO2 d. 2Al(NO3 ) 3 ____ 63. An element’s most stable ion forms an ionic compound with chlorine having the formula XCl2 . If the ion of element X has a mass of 89 and 36 electrons, what is the identity of the element, and how many neutrons does it have? a. Kr, 53 neutrons d. Sr ...
... a. 4H2 O c. H2 SO4 b. 3CO2 d. 2Al(NO3 ) 3 ____ 63. An element’s most stable ion forms an ionic compound with chlorine having the formula XCl2 . If the ion of element X has a mass of 89 and 36 electrons, what is the identity of the element, and how many neutrons does it have? a. Kr, 53 neutrons d. Sr ...
Unit 3 Test - hrsbstaff.ednet.ns.ca
... b) a change in state from gas to solid, or from solid to gas ...
... b) a change in state from gas to solid, or from solid to gas ...
Name - cloudfront.net
... If heat is released by a chemical system, an equal amount of heat will be ____. By what quantity must the heat capacity (J/oC) of an object be divided to obtain the specific heat (J/goC) of that material? 64. When energy is changed from one form to another, ____. 65. What happens to the energy produ ...
... If heat is released by a chemical system, an equal amount of heat will be ____. By what quantity must the heat capacity (J/oC) of an object be divided to obtain the specific heat (J/goC) of that material? 64. When energy is changed from one form to another, ____. 65. What happens to the energy produ ...
Chemical Questions
... compressed air through a nozzle. • The water vapor expands as it passes through the nozzle and then freezes to a solid or snow. • Recall that when we heat a gas at constant T, its volume increases (expansion). We have to provide heat in this case. • If we insulate the gas from the heat source but st ...
... compressed air through a nozzle. • The water vapor expands as it passes through the nozzle and then freezes to a solid or snow. • Recall that when we heat a gas at constant T, its volume increases (expansion). We have to provide heat in this case. • If we insulate the gas from the heat source but st ...
AP gas notes 2010
... Each exerts a specific pressure(called partial pressure) as it would by itself Total Pressure of gas mixture = sum of the partial pressures of each individual gas ...
... Each exerts a specific pressure(called partial pressure) as it would by itself Total Pressure of gas mixture = sum of the partial pressures of each individual gas ...
110 EXAM IV MATERIAL Tro Spr 2015
... 4. Smelling salts contain ammonium carbonate, which can decompose to form ammonia, a mild heart stimulant. The ammonium carbonate decomposes according to the following reaction: (NH4)2CO3(s) 2NH3(g) + CO2(g) + H2O(l) ...
... 4. Smelling salts contain ammonium carbonate, which can decompose to form ammonia, a mild heart stimulant. The ammonium carbonate decomposes according to the following reaction: (NH4)2CO3(s) 2NH3(g) + CO2(g) + H2O(l) ...
Name……………………………………............................. Index number
... Mathematical tables and silent electronic calculators may be used. All working must be clearly shown where necessary. This paper consist of 17 printed pages Candidates should check the question paper to ascertain that all the pages are printed as indicated and no questions are missing. Candidates ...
... Mathematical tables and silent electronic calculators may be used. All working must be clearly shown where necessary. This paper consist of 17 printed pages Candidates should check the question paper to ascertain that all the pages are printed as indicated and no questions are missing. Candidates ...
Review_WB_1
... What would happen to the kinetic energy and the pressure if you doubled the particles? Draw what the particles look like? How many should be there? ...
... What would happen to the kinetic energy and the pressure if you doubled the particles? Draw what the particles look like? How many should be there? ...
Chemistry 2nd Semester Final Review
... Solutions (Ch. 15 and some Ch. 2): Subtopics: mixtures, molarity 19. Distinguish between a mixture and a pure substance. Most things are mixtures There are only two types of pure substances: elements and compounds A mixture is anything that is not a single element or a single compound, but a mixture ...
... Solutions (Ch. 15 and some Ch. 2): Subtopics: mixtures, molarity 19. Distinguish between a mixture and a pure substance. Most things are mixtures There are only two types of pure substances: elements and compounds A mixture is anything that is not a single element or a single compound, but a mixture ...
Separation and Purification Methods
... high-performance liquid chromatography (HPLC), and thin-layer chromatography (TLC). Sample sizes for these procedures are usually quite small, from microgram to milligram quantities. In some cases, the chromatograph is coupled to another analytical instrument, such as a mass spectrometer or nuclear ...
... high-performance liquid chromatography (HPLC), and thin-layer chromatography (TLC). Sample sizes for these procedures are usually quite small, from microgram to milligram quantities. In some cases, the chromatograph is coupled to another analytical instrument, such as a mass spectrometer or nuclear ...
Test 1
... 8. (12 points) I am going to drop a 500 gram block of aluminum that is at 99oC into 500 mLs of water that is at 1oC. Assuming adiabatic conditions, what is the final temperature of the system? (The specific heat capacity of aluminum is .83 J/mol@K, the specific heat capacity of water is 4.184 J/mol@ ...
... 8. (12 points) I am going to drop a 500 gram block of aluminum that is at 99oC into 500 mLs of water that is at 1oC. Assuming adiabatic conditions, what is the final temperature of the system? (The specific heat capacity of aluminum is .83 J/mol@K, the specific heat capacity of water is 4.184 J/mol@ ...
Name__________________________ Honors Chemistry Final
... 6. At constant pressure, a balloon containing 0.5 L of an unknown gas at 28 oC is placed in a refrigerator and allowed to cool to 4 oC. What is its new volume? ...
... 6. At constant pressure, a balloon containing 0.5 L of an unknown gas at 28 oC is placed in a refrigerator and allowed to cool to 4 oC. What is its new volume? ...
AL COS #
... Acid + Base ->salt and water What type of acids and bases produce only a few ions in solution? Weak What term refers to the ease with which an acid or base forms ions in Strength solution? What type of solution contains more hydrogen ions than it does Acidic hydroxide ions? Know the pH Scale. What i ...
... Acid + Base ->salt and water What type of acids and bases produce only a few ions in solution? Weak What term refers to the ease with which an acid or base forms ions in Strength solution? What type of solution contains more hydrogen ions than it does Acidic hydroxide ions? Know the pH Scale. What i ...
FINAL REVIEW
... 48. A gas has a pressure of 608 mm Hg in a container with a volume of 545 cm3. If the container’s volume is increased to 1065 cm3, what will the pressure of the gas be? 311 mm Hg 49. What will the volume of a gas sample be at 100. °C if its volume at 23.1 °C is 51.3 L? 64.6 L 50. If the pressure of ...
... 48. A gas has a pressure of 608 mm Hg in a container with a volume of 545 cm3. If the container’s volume is increased to 1065 cm3, what will the pressure of the gas be? 311 mm Hg 49. What will the volume of a gas sample be at 100. °C if its volume at 23.1 °C is 51.3 L? 64.6 L 50. If the pressure of ...
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.