Browse All
Alphabetical listing with fast deep pagination.
1197283 items • Page 23921 / 23946
± Percent Yield 1.84 g H2 is allowed to react with 10.2 g N2, producing 2.91 g N
± Percent Yield 1.84 g H2 is allowed to react with 10.2 g N2, producing 2.91 g NH3 The Haber-Bosch process is a very important industrial process. In the Haber-Bosch process, hydr…
± Percent Yield 3H2(g)+N2(g)2NH3(g) The ammonia produced in the Haber-Bosch proc
± Percent Yield 3H2(g)+N2(g)2NH3(g) The ammonia produced in the Haber-Bosch process has a wide range of uses, from fertilizer to pharmaceuticals. However, the production of ammoni…
± Percent Yield 3H2(g)+N2(g)2NH3(g) The ammonia produced in the Haber-Bosch proc
± Percent Yield 3H2(g)+N2(g)2NH3(g) The ammonia produced in the Haber-Bosch process has a wide range of uses, from fertilizer to pharmaceuticals. However, the production of ammoni…
± PhET Simulation - Concentration Solutions consist of a solute dissolved into a
± PhET Simulation - Concentration Solutions consist of a solute dissolved into a solvent, e.g., a salt dissolved in water. There is often a need to quantify how much solute is pre…
± PhET Simulation-Concentration Solutions consist of a solute dissolved into a s
± PhET Simulation-Concentration Solutions consist of a solute dissolved into a solvent, eg, a salt dissolved in water. There is often a need to quantify how much solute is present…
± Pressure-Based versus Concentration-Based Equilibrium Constants Part A For the
± Pressure-Based versus Concentration-Based Equilibrium Constants Part A For the reaction 3A(g)+3B(g)C(g) Kc = 32.8 at a temperature of 377 C . Calculate the value of Kp. Express …
± Problem 10.75 with feedback Ammonium nitrate can decompose explosively when he
± Problem 10.75 with feedback Ammonium nitrate can decompose explosively when heated according to the following equation: 2NH4NO3(s) 2N2(g)+4H2O(g)+O2(g) Part A How many liters of…
± Radioactive Decay Calculations If a substance is radioactive, this means that
± Radioactive Decay Calculations If a substance is radioactive, this means that the nucleus is unstable and will therefore decay by any number of processes (alpha decay, beta deca…
± Radioactive Decay Calculations If a substance is radioactive, this means that
± Radioactive Decay Calculations If a substance is radioactive, this means that the nucleus is unstable and will therefore decay by any number of processes (alpha decay, beta deca…
± Radioactive Decay Calculations: If a substance is radioactive, this means that
± Radioactive Decay Calculations: If a substance is radioactive, this means that the nucleus is unstable and will therefore decay by any number of processes (alpha decay, beta dec…
± Reaction Order Part A For the reaction A + B + CD + E, the initial reaction ra
± Reaction Order Part A For the reaction A + B + CD + E, the initial reaction rate was measured for various initial concentrations of reactants. The following data were collected …
± Reaction Rates To measure the speed of a car, we use miles per hour (miles/hou
± Reaction Rates To measure the speed of a car, we use miles per hour (miles/hour or mi/h or mph). To measure the rate of a reaction we use molar concentration per second(M/s). Pa…
± Reaction Rates and Temperature The rate constant of a chemical reaction increa
± Reaction Rates and Temperature The rate constant of a chemical reaction increased from 0.100 s1 to 2.80 s1 upon raising the temperature from 25.0 C to 41.0 C . Part A Calculate …
± Relating Different Forms of the Equibrium Constant Part A For chemical reactio
± Relating Different Forms of the Equibrium Constant Part A For chemical reactions involving ideal gases, the equilbrium constant K can be expressed either in terms of the concent…
± Relating Different Forms of the Equilibrium Constant For chemical reactions in
± Relating Different Forms of the Equilibrium Constant For chemical reactions involving ideal gases, the equilibrium constant K can be expressed either in terms of the concentrati…
± Rocket Height Part A A rocket, initially at rest on the ground, accelerates st
± Rocket Height Part A A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 49.0 m/s2 . The acceleration period lasts for ti…
± Solubility Constant Expression Part A Enter the the K sp expression for the so
± Solubility Constant Expression Part A Enter the the Ksp expression for the solid AB2 in terms of the molar solubility x. Express your answer in terms of x. Ksp =??? Part C Enter…
± Solubility of Zinc Hydroxide in Basic Solution The formation constant for the
± Solubility of Zinc Hydroxide in Basic Solution The formation constant for the hydroxo complex, Zn(OH)42, is Kf=4.60×1017. A solubility-product constant, Ksp, corresponds to a re…
± Solubility of Zinc Hydroxide in Basic Solution The formation constant for the
± Solubility of Zinc Hydroxide in Basic Solution The formation constant for the hydroxo complex, Zn(OH)42, is Kf=4.60×1017. A solubility-product constant, Ksp, corresponds to a re…
± Stoichiometric Relationships with Gases P V = n R T relates pressure P , volum
± Stoichiometric Relationships with Gases PV=nRT relates pressure P, volume V, temperature T, and number of moles of a gas, n. The gas constant Requals 0.08206 Latm/(Kmol) or 8.31…
± Stoichiometric Relationships with Gases Part A When heated, calcium carbonate
± Stoichiometric Relationships with Gases Part A When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction What is the mass of calci…
± Study of Plutonium Levels in a Human Population 411 02 dps Hints My Answers Gi
± Study of Plutonium Levels in a Human Population 411 02 dps Hints My Answers Give Up Revlew Pat Radation can be measured according to activity, exposure, or its effect on biologi…
± Suspending Charged Particles Using Electric Fields Part A What must the charge
± Suspending Charged Particles Using Electric Fields Part A What must the charge (sign and magnitude) of a particle of mass 1.47 g be for it to remain stationary when placed in a …
± Suspending Charged Particles Using Electric Fields Part A What must the charge
± Suspending Charged Particles Using Electric Fields Part A What must the charge (sign and magnitude) of a particle of mass 1.45 g be for it to remain stationary when placed in a …
± The Arrhenius Equation Part A The Arrhenius equation shows the relationship be
± The Arrhenius Equation Part A The Arrhenius equation shows the relationship between the rate constant k and the temperature T in kelvins and is typically written as The activati…
± The Arrhenius Equation Part A The activation energy of a certain reaction is 3
± The Arrhenius Equation Part A The activation energy of a certain reaction is 38.6 kJ/mol . At 24 C , the rate constant is 0.0160s1. At what temperature in degrees Celsius would …
± The Common-Ion Effect Part A - Calculate the molar solubility in water Mg(OH)2
± The Common-Ion Effect Part A - Calculate the molar solubility in water Mg(OH)2 is a sparingly soluble compound, in this case a base, with a solubility product, Ksp, of 5.61×10?1…
± The Common-Ion Effect The common-ion effect and solubility The common-ion effe
± The Common-Ion Effect The common-ion effect and solubility The common-ion effect is an application of Le Châtlier's principle, which states that an equilibrium system that is st…
± The Heisenberg Uncertainty Principle Part A What is the uncertainty of the pos
± The Heisenberg Uncertainty Principle Part A What is the uncertainty of the position of the bacterium? A student is examining a bacterium under the microscope. The E coll bacteri…
± The Ideal Gas Law The ideal gas law describes the relationship among the press
± The Ideal Gas Law The ideal gas law describes the relationship among the pressure P, volume V, number of moles n, and absolute temperature T of an ideal gas. Here is the relatio…
± The Ideal Gas Law and Stoichiometry Part A The industrial production of nitric
± The Ideal Gas Law and Stoichiometry Part A The industrial production of nitric acid (HNO3) is a multistep process. The first step is the oxidation of ammonia (NH3) over a cataly…
± The Mole as a Counting Unit Suppose a piece of silver jewelry contains 6.02x10
± The Mole as a Counting Unit Suppose a piece of silver jewelry contains 6.02x1022 atoms of silver (Ag) There are several common counting units Part A 1 dozen 12 . 1 score= 20 How…
± The Nernst Equation 17 of 28 Constants | Periodic Table The Nernst equation is
± The Nernst Equation 17 of 28 Constants | Periodic Table The Nernst equation is one of the most important equations in electrochemistry. To calculate the cell potential at non-st…
± The Nernst Equation S 20f2 Constants 1 Pediodic Table PartA The Nemst equation
± The Nernst Equation S 20f2 Constants 1 Pediodic Table PartA The Nemst equation is one of the most important equations in electrochemistry. To calculate the cell potential at non…
± The Nernst Equation and pH Sulfuric acid is a very strong acid that can act as
± The Nernst Equation and pH Sulfuric acid is a very strong acid that can act as an oxidizing agent at high concentrations (very low pH, or even negative pH values). Under standar…
± The de Broglie Relation Learning Goal: To understand de Broglie waves and the
± The de Broglie Relation Learning Goal: To understand de Broglie waves and the calculation of wave properties. In 1924, Louis de Broglie postulated that particles such as electro…
± Titration of Weak Acid with Strong Base A certain weak acid, HA, with a K a va
± Titration of Weak Acid with Strong Base A certain weak acid, HA, with a Ka value of 5.61×106, is titrated with NaOH. Part A A solution is made by titrating 7.00 mmol (millimoles…
± Two Forces Acting at a Point Part A What is the x component of the resultant f
± Two Forces Acting at a Point Part A What is the x component of the resultant force? Two forces, F1 and F2, act at a point. F1 has a magnitude of 9.80 N and is directed at an ang…
± Two Forces Acting at a Point Two forces, F 1 and F 2, act at a point. F 1 has
± Two Forces Acting at a Point Two forces, F 1 and F 2, act at a point. F 1 has a magnitude of 8.00 N and is directed at an angle of 58.0 above the negative x axis in the second q…
± Understanding Heat Radiation Learning Goal: To understand the formula for powe
± Understanding Heat Radiation Learning Goal: To understand the formula for power radiated in the form of electromagnetic energy by an object at nonzero temperature. Every object …
± Understanding Two-Source Interference Learning Goal: To understand the assumpt
± Understanding Two-Source Interference Learning Goal: To understand the assumptions made by the standard two-source interference equations and to be able to use them in a standar…
± Using Microwave Radiation to Heat Coffee Microwave ovens use microwave radiati
± Using Microwave Radiation to Heat Coffee Microwave ovens use microwave radiation to heat food. The microwaves are absorbed by the water molecules in the food, which is transferr…
± Using Microwave Radiation to Heat Coffee Microwave ovens use microwave radiati
± Using Microwave Radiation to Heat Coffee Microwave ovens use microwave radiation to heat food. The microwaves are absorbed by the water molecules in the food, which is transferr…
± Vector Dot Product Learning Goal: To understand the rules for computing dot pr
± Vector Dot Product Learning Goal: To understand the rules for computing dot products. Let vectors A=(2,1,4), B=(3,0,1), and C=(1,1,2). Part A - Dot product of the vectors A and …
± Weak Base Calculations NX3(aq)+H2O(l)HNX3+(aq)+OH(aq) K b=[HNX3+][OH][NX3] whe
± Weak Base Calculations NX3(aq)+H2O(l)HNX3+(aq)+OH(aq) Kb=[HNX3+][OH][NX3] where Kb is the base ionization constant. The extent of ionization, and thus the strength of the base, …
± What Holds Matter Together? Part D The ionization energy of an atom is the ene
± What Holds Matter Together? Part D The ionization energy of an atom is the energy required to remove an electron from that atom. The electron affinity of an atom is the energy r…
± calorimetry Constants Periodic Table Part A calorimeter is an insulated device
± calorimetry Constants Periodic Table Part A calorimeter is an insulated device in which a chemical reaction is contained. By measuring the temperature change, AT we can cacuiate…
± pH Changes in Buffers HA(aq)H+(aq)+A(aq) The buffer will follow Le Châtelier\'
± pH Changes in Buffers HA(aq)H+(aq)+A(aq) The buffer will follow Le Châtelier's principle. If acid is added, the reaction shifts to consume the addedH+, forming more HA. When bas…
± pH Changes in Buffers Part A What is the pH of a buffer prepared by adding 0.7
± pH Changes in Buffers Part A What is the pH of a buffer prepared by adding 0.708 mol of the weak acid HA to 0.608 mol of NaA in 2.00 L of solution? The dissociation constant Ka …
± pH and Percent Ionization of a Weak Base The degree to which a weak base disso
± pH and Percent Ionization of a Weak Base The degree to which a weak base dissociates is given by the base-ionization constant, Kb. For the generic weak base, B B(aq)+H2O(l)BH+(a…