Honors Chemistry Final Review
... When given the formula, and writing the name for ionic compounds, remember to place the names in the same order as they appear in the formula. Remember, that if a transition metal, tin or lead appears, you will need a Roman Numeral. The Roman Numeral indicates the charge of the metal ion, and while ...
... When given the formula, and writing the name for ionic compounds, remember to place the names in the same order as they appear in the formula. Remember, that if a transition metal, tin or lead appears, you will need a Roman Numeral. The Roman Numeral indicates the charge of the metal ion, and while ...
Matter and Energy Notes
... Numerous techniques have been developed to separate mixtures to study components ...
... Numerous techniques have been developed to separate mixtures to study components ...
1 2016-17 Honors Chemistry Review for the Final Exam Each unit
... A student is synthesizing a compound of osmium metal with oxygen gas which is accomplished by heating the metal in the presence of oxygen gas at temperatures near 400˚C. An 85.57g sample of osmium metal is heated in a crucible (crucible mass = 254.48g and lid mass = 66.79g). The final product and th ...
... A student is synthesizing a compound of osmium metal with oxygen gas which is accomplished by heating the metal in the presence of oxygen gas at temperatures near 400˚C. An 85.57g sample of osmium metal is heated in a crucible (crucible mass = 254.48g and lid mass = 66.79g). The final product and th ...
1 - 嘉義大學
... 10. One mole of an ideal gas is expanded from a volume of 1.00 liter to a volume of 10.00 liters against a constant external pressure of 1.00 atm. How much work (in joules) is performed on the surroundings? (T = 300 K; 1 L atm = 101.3 J) (A) 456 J (B) 912 J (C) 2740 J (D) none of these 11. What is t ...
... 10. One mole of an ideal gas is expanded from a volume of 1.00 liter to a volume of 10.00 liters against a constant external pressure of 1.00 atm. How much work (in joules) is performed on the surroundings? (T = 300 K; 1 L atm = 101.3 J) (A) 456 J (B) 912 J (C) 2740 J (D) none of these 11. What is t ...
Characteristics of Gases Pressure Gas Laws The Ideal
... Some nitrogen gas is in a 2.00-L tank at a pressure of 3.00 atm. The tank is connected to a 5.00-L tank that is completely empty (evacuated), and a valve connects the two tanks., If the valve is opened, determine the total pressure in this two-tank system after the nitrogen stops flowing. No tempera ...
... Some nitrogen gas is in a 2.00-L tank at a pressure of 3.00 atm. The tank is connected to a 5.00-L tank that is completely empty (evacuated), and a valve connects the two tanks., If the valve is opened, determine the total pressure in this two-tank system after the nitrogen stops flowing. No tempera ...
Spring 2014 Chemistry Review
... 98) In the solvation of solids, solubility rates increase with (high / low) temperatures. 99) In the solvation of gases, solubility rates increase with (high / low) temperatures and (high / low) pressure. 100) Agitation of a solution will (increase / decrease) the dissolving rate of a solid; whereas ...
... 98) In the solvation of solids, solubility rates increase with (high / low) temperatures. 99) In the solvation of gases, solubility rates increase with (high / low) temperatures and (high / low) pressure. 100) Agitation of a solution will (increase / decrease) the dissolving rate of a solid; whereas ...
Chromatography
... • The mobile phase may be a gas or liquid. • The mobile phase is then passed through another phase called stationary phase. • The stationary phase may be a solid packed in a glass ...
... • The mobile phase may be a gas or liquid. • The mobile phase is then passed through another phase called stationary phase. • The stationary phase may be a solid packed in a glass ...
Honors Chemistry Review Packet KEY
... 5. Color (it’s the only white solid). 6. Liquids and gases both have an indefinite shape; while the shape of a solid is definite, the shape of a liquid is indefinite. 7. It is reversible because solid mercury can be melted back into a liquid again. 8. Platinum and copper can have the same mass and v ...
... 5. Color (it’s the only white solid). 6. Liquids and gases both have an indefinite shape; while the shape of a solid is definite, the shape of a liquid is indefinite. 7. It is reversible because solid mercury can be melted back into a liquid again. 8. Platinum and copper can have the same mass and v ...
AP Chem Mr. Dehne Name: ___________ Date: Per#: ___ AP
... 5. Suppose two 200.0L tanks are to be filled separately with the gases helium and hydrogen. What mass of each gas is needed to produce a pressure of 135atm in its respective tank at 24 oC? 6. A 2.50L container is filled with 175g argon. a. If the pressure is 10.0atm, what is the temperature? b. If t ...
... 5. Suppose two 200.0L tanks are to be filled separately with the gases helium and hydrogen. What mass of each gas is needed to produce a pressure of 135atm in its respective tank at 24 oC? 6. A 2.50L container is filled with 175g argon. a. If the pressure is 10.0atm, what is the temperature? b. If t ...
Semester II Review
... – Determine the Limiting reactant if 3.50 g of hydrogen reacts with 42.0 g of nitrogen. – What is the theoretical yield of the above problem? 39.4 g NH3 – What is the % yield if the reaction produced 15.3 g of ammonia. 38.8 % – Calculate the amount of grams of excess reactant leftover at the end of ...
... – Determine the Limiting reactant if 3.50 g of hydrogen reacts with 42.0 g of nitrogen. – What is the theoretical yield of the above problem? 39.4 g NH3 – What is the % yield if the reaction produced 15.3 g of ammonia. 38.8 % – Calculate the amount of grams of excess reactant leftover at the end of ...
File
... The stream of atoms divided into two separate paths. This division would not be observed with atoms of A) Cu B) Cr C) Mg D) K E) Al ___D___29. The Pauli exclusion principle states that A) the velocity of all electromagnetic radiation equals the speed of light B) all particles with mass also have a w ...
... The stream of atoms divided into two separate paths. This division would not be observed with atoms of A) Cu B) Cr C) Mg D) K E) Al ___D___29. The Pauli exclusion principle states that A) the velocity of all electromagnetic radiation equals the speed of light B) all particles with mass also have a w ...
CHAPTER 5 REVIEW PACKET – GAS LAWS
... 14. A quantity of N2 gas originally held at 4.75 atm pressure in a 1.00 L container at 26.0 0C is transferred to a 10.0 L container at 20.00C. A quantity of O2 gas originally at 5.25 atm and 26.00C and a 5.00 L container is transferred to the same container. What is the total pressure in the new con ...
... 14. A quantity of N2 gas originally held at 4.75 atm pressure in a 1.00 L container at 26.0 0C is transferred to a 10.0 L container at 20.00C. A quantity of O2 gas originally at 5.25 atm and 26.00C and a 5.00 L container is transferred to the same container. What is the total pressure in the new con ...
Workshop #4 Answers
... Use the balanced equation below to solve the following problems: 2 KMnO4 + 16 HCl → 5 Cl2 + 2 KCl + 2 MnCl2 + 8 H2O (a) ...
... Use the balanced equation below to solve the following problems: 2 KMnO4 + 16 HCl → 5 Cl2 + 2 KCl + 2 MnCl2 + 8 H2O (a) ...
Classification of Matter
... Also the original solid (HgO) and the product (Hg) are not the same colour. HgO is red and Hg is shiny and silvery. We have gas escaping (as suggested by the loss in solid mass: 432 vs. 400g) and a solid that is different from the original (difference in colour); the combination of these two observ ...
... Also the original solid (HgO) and the product (Hg) are not the same colour. HgO is red and Hg is shiny and silvery. We have gas escaping (as suggested by the loss in solid mass: 432 vs. 400g) and a solid that is different from the original (difference in colour); the combination of these two observ ...
Sec. 12.3 Day 2
... Each gas exerts a pressure proportional to its number of molecules in the container. The presence of other gas molecules does not change this fact. ...
... Each gas exerts a pressure proportional to its number of molecules in the container. The presence of other gas molecules does not change this fact. ...
SAMPLE EXAM #2
... b. are very far apart. c. lose their valence electrons. d. move slowly. e. decrease kinetic energy as temperature increases. 16. Which relationship is INCORRECT? a. as the temperature of a gas increases, the volume increases. b. as the volume of a gas increases, the moles of gas increases. c. as the ...
... b. are very far apart. c. lose their valence electrons. d. move slowly. e. decrease kinetic energy as temperature increases. 16. Which relationship is INCORRECT? a. as the temperature of a gas increases, the volume increases. b. as the volume of a gas increases, the moles of gas increases. c. as the ...
CHEMONE Directions: Select the letter of the best
... a. The average kinetic energies of molecules from sample of different “ideal” gases is the same at the same temperature. b. The molecules of an ideal gas are relatively far apart. c. All molecules of an ideal gas have the same kinetic energy at constant temperature. d. Molecules of a gas undergo man ...
... a. The average kinetic energies of molecules from sample of different “ideal” gases is the same at the same temperature. b. The molecules of an ideal gas are relatively far apart. c. All molecules of an ideal gas have the same kinetic energy at constant temperature. d. Molecules of a gas undergo man ...
Chemistry 2nd Semester Final Review
... 14. Describe what happens on a molecular level as a block of ice turns into steam. What is different about the water at each phase? 15. Define temperature. How is it related to kinetic energy? 16. Convert 45 °C to Kelvins. 17. Define specific heat. What does it mean if a substance has a high specifi ...
... 14. Describe what happens on a molecular level as a block of ice turns into steam. What is different about the water at each phase? 15. Define temperature. How is it related to kinetic energy? 16. Convert 45 °C to Kelvins. 17. Define specific heat. What does it mean if a substance has a high specifi ...
1 - UCSB C.L.A.S.
... 1. Assume you have 2 mol of argon gas at a pressure of 10 atm and volume 1.0 L and the gas is taken to a new state where the pressure is 5 atm and the volume is 5 L. There are two possible paths for this process. Use the following diagram to calculate ΔE, ΔH, q and w for each pathway. 2. How many j ...
... 1. Assume you have 2 mol of argon gas at a pressure of 10 atm and volume 1.0 L and the gas is taken to a new state where the pressure is 5 atm and the volume is 5 L. There are two possible paths for this process. Use the following diagram to calculate ΔE, ΔH, q and w for each pathway. 2. How many j ...
C:\Users\Jim\Documents\usb key backups\Nov. 17\sch3u\unit 4
... Higher temperatures mean higher average speed. However, temperature is proportional to kinetic energy, not speed. Ek = .5 m v2 At the same temperature, molecules with larger molar masses are moving more slowly. You can measure this by releasing two gases at the same moment and timing how long it tak ...
... Higher temperatures mean higher average speed. However, temperature is proportional to kinetic energy, not speed. Ek = .5 m v2 At the same temperature, molecules with larger molar masses are moving more slowly. You can measure this by releasing two gases at the same moment and timing how long it tak ...
Matter Change
... The process by which the atoms of one or more substances are rearranged to form different substances Occurrence can be indicated by changes in temperature, color, odor, & physical state Also known as a chemical change Chemical properties can only be observed when a substance undergoes a chemical ...
... The process by which the atoms of one or more substances are rearranged to form different substances Occurrence can be indicated by changes in temperature, color, odor, & physical state Also known as a chemical change Chemical properties can only be observed when a substance undergoes a chemical ...
Semester 2 Final Exam
... 5. As a block of aluminum is heated with 600 J of energy, its temperature increases from 10°C to 47°C. What is the mass of this block? (c of Al = 0.900 J/g·°C) (A) 0.055 g (B) 14.6 g (C) 18.0 g (D) 33.3 g 6. The units for heat are: (A) J (B) J/g (C) J/g·°C (D) J/°C 7. 20.0 gram samples of each of th ...
... 5. As a block of aluminum is heated with 600 J of energy, its temperature increases from 10°C to 47°C. What is the mass of this block? (c of Al = 0.900 J/g·°C) (A) 0.055 g (B) 14.6 g (C) 18.0 g (D) 33.3 g 6. The units for heat are: (A) J (B) J/g (C) J/g·°C (D) J/°C 7. 20.0 gram samples of each of th ...
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.