Iron‚ which has the chemical symbol Fe‚ is an extremely useful metal and the most common element 0n the planet Earth. Here are some of the more common uses of iron in the world today. Uses of Iron * Iron catalysts are used in the Haber-Bosch Process to produce ammonia and the Fischer-Tropsch Process to convert carbon monoxide to hydrocarbons used for fuels and lubricants. * Iron metal is strong but is also quite cheap. Therefore‚ it is the most common metal in use today. Most automobiles
Premium Zinc Aluminium Iron
Chromate-Dichromate Equilibrium F. Thiocyanatoiron (III) Complex Ion Equilibrium G. Weak Acid Equilibrium (Ionization of Acetic Acid) H. Weak Base Equilibrium Ionization of Ammonia I. Saturated Salt (Sodium Chloride) Equilibrium On part (A) we are to observe which reaction rate is faster‚ and doing the experiment. We have concluded that: “Aluminum had faster rate of reaction rate than iron because it is more active than iron based on the activity series.” TABLE B. Temperature (C) Time to
Premium Chemical reaction Energy
HC2O4−. A salt with this anion is sometimes called an acid oxalate‚ monobasic oxalate‚ or hydrogen oxalate. The equilibrium constant (Ka) for loss of the first proton is 5.37×10−2 (pKa = 1.27). The loss of the second proton‚ which yields the oxalate ion has an equilibrium constant of 5.25×10−5 (pKa = 4.28). These values imply that‚ in solutions with neutral pH‚ there is no oxalic acid‚ and only trace amounts of hydrogen oxalate.[1] The literature is often unclear on the distinction between H2C2O4‚
Premium Acid PH Hydrogen
material elements in contact. It is usually subdivided into several varieties: * Dry friction resists relative lateral motion of two solid surfaces in contact. Dry friction is also subdivided into static friction between non-moving surfaces‚ and kinetic friction (sometimes called sliding friction or dynamic friction) between moving surfaces. * Lubricated friction or fluid friction resists relative lateral motion of two solid surfaces separated by a layer of gas or liquid. * Fluid friction
Premium Friction Force Classical mechanics
The kinetic theory of gases describes a gas as a large number of small particles (atoms or molecules)‚ all of which are in constant‚ random motion. The rapidly moving particles constantly collide with each other and with the walls of the container. Kinetic theory explains macroscopic properties of gases‚ such as pressure‚ temperature‚ or volume‚ by considering their molecular composition and motion. Essentially‚ the theory posits that pressure is due not to static repulsion between molecules‚ as
Premium Ideal gas law
Experiment 4: Enzyme Kinetics. Results/Discussion Week 1 Part A: Table 1. Enzyme activity for each assay of 4-nitroaniline formation. Rate of 4-nitroaniline formation Name of trial Abs/sec Abs/min M/min mol/min µmol/min #1 0.00003 0.0018 2.05x10-7 2.15 x10-10 2.15 x10-4 # 2 0.00010 0.0060 6.81x10-7 7.15x10-10 7.15x10-4 # 3 0.00020 0.0120 1.36x10-6 1.43x10-9 1.43x10-3 # 4 0.00030 0.0180 2.00x10-6 2.10x10-9 2.10x10-3
Premium Enzyme
BIOCHEMISTRY 304 Enzyme Kinetic Sample Problems #1 September 2004 1 Given the reaction k1 kp E + S ES E + P k-1 where k1 = 1 x 107 M-1 sec-1 k-1 = 1 x 102 sec-1‚ and kp = 3 x 102 sec-1 a) Calculate Ks b) Calculate Km (a) k-1 1 x 102 sec-1 Ks = k1 = 1 x 107 M-1 sec-1 = 1 x 10-5 M (b) k-1 + kp (1 x 102 sec-1) + (3 x 102 sec-1)
Premium Reaction rate Chemical kinetics Rate equation
Lecture No. 1 Chemical Kinetics 1.1 The Rate of a Reaction Chemical Kinetics is the area of Chemistry that is concerned with the speed‚ rate or mechanism at which a chemical reaction occurs. Reaction Rate is the change in the concentration of a reactant or product with time (i.e. M/s). It measures how fast a reactant is consumed and how fast a product is formed. 1.2 WRITING RATE EXPRESSIONS Consider the following hypothetical reaction. A + 2B ( 3C + D Rate = - rate
Premium Chemical kinetics Rate equation
(3) Sharon Chan (4) Christy Chan (5) BIOLOGY LAB REPORT Investigation of the effect of metal ions on enzyme activity Objective To study the effect of two heavy metal ions‚ lead (II) ions and silver ions on the enzyme activity of invertase. Introduction Hypothesis: The rate of enzyme reaction of invertase decreases and the reaction eventually stops as the heavy metal ions inhibit the enzyme reactions. Biological principle: Heavy metal ions are non-competitive inhibitors. They do not compete
Premium Enzyme Silver
Hydrogen peroxide and iodide ions Aim: To determine the rate equation for the reaction between Hydrogen peroxide and iodide ions‚ and to investigate the effects of a catalyst and temperatures on the reaction and to derive the activation enthalpy. Background knowledge: 1Hydrogen peroxide reacts with iodide ions producing iodine‚ when in an aqueous acid solution. H2O2 (aq) + 2I- (aq) + 2H3O+(aq) I2 (aq) + 2H2O(l) To detect iodine you can look at the color shown by the addition of starch
Free Chemical kinetics Chemical reaction Reaction rate