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KN95 Respirator Mask, 4 layers, Box of 50 -LP-KN95-001BOX50
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Determination Of Water Hard- Ness Ap Chemistry Kit -IS8020
$29.99In this experiment the indicator eriochrome black T (EBT) is used to signal the presence of ions in the water sample. EBT binds with free metal ions in the water...
Thermochromism Ap Chemistry Kit -IS8019
$105.00The way in which light is absorbed or reflected by a crystalline material is determined by the structure of the crystal. This crystal structure can be changed by the application...
Determination Of The Molecular Mass Of Liquid Ap Chemistry -IS8018
$43.00A volatile liquid is placed in a test tube and the tube is closed with a stopper with a hole in it. The test tube is placed in a hot...
Electrochemical Cells Ap Chemistry Kit -IS8016
$55.00The tendency of oxidation-reduction reactions is to proceed to an equilibrium state. These reactions occurring in electrochemical cells provide another way for us to express the driving force in chemical...
Vapor Pressure Ap Chemistry Kit -IS8015
$29.50Raoult’s Law can be proven empirically by measuring the change in vapor pressure as solute is added to a solvent. The measurements will be taken at different temperatures to demonstrate...
Freezing Point Depression Ap Chemistry Kit -IS8014
$46.00Molecular mass is a parameter, which is useful in determining the identity of an unknown compound. One technique to determine the molecular mass of an unknown is to measure the...
Oxidation-Reduction Reactions Ap Chemistry Kit -IS8013
$46.00The term oxidation can mean the chemical combination of a substance with oxygen and reduction can be the removal of oxygen from a compound. When oxygen reacts with any other...
Equilibrium Constant Of An Ionic Compound Ap Chemistry -IS8012
$29.99The idea of the reversibility of chemical reactions was first stated by C. Berthollet in 1799. He noted deposits of sodium carbonate in certain salt lakes in Egypt and concluded...
Stoichiometry In The Synthesis Of Ionic Compound Ap Chem. -IS8011
$46.25Many combinations of mono and trivalent cations yield crystals of the same stoichiometry and structure. The crystals are normally in the form of an octahedron. Sodium, potassium and ammonium ions...
Beer Lambert Law Ap Chemistry Kit -IS8010
$38.00The probability that a photon of light will be absorbed by a solution is directly proportional to the concentration of the absorbing molecules, the thickness of the sample and the...
Qualitative Analysis Ap Chemistry Kit -IS8009
$84.50Colorimetric or turbidimetric methods of analysis have been developed for most of the elements and ionic species. These methods can be employed to quickly determine the chemical composition of an...
Dissociation Constant Of Weak Acids Ap Chemistry Kit -IS8008
$44.00Students determine the equilibrium constant of three unknown acids and compare the data to known values to identify them.
Reaction Kinetics Ap Chemistry Kit -IS8007
$49.99In a chemical reaction, reactants are converted to product at a given rate. This rate can be changed by alternating either the temperature of the reaction, the form of the...
Acids & Bases Ap Chemistry Kit -IS8006
$31.50A solution of sodium hydroxide which is approximately 0.01M will be standardized with a solid acid, potassium hydrogen phthalate, to determine the exact molarity of the base. The standardized base...
Formation Of Esters Ap Chemistry Kit -IS8005
$59.99The yield of ester can be increased either by removing one of the products of the reaction as it is formed or by increasing the concentration of one of the...
Lechatelier's Principle -IS8004
$43.00Le Chatelier’s Principle is a qualitative rule, which allows the prediction of the effect of temperature, pressure and concentration changes on chemical reactions. The principle states: A chemical system at...
