Sodium hydroxide

KEY WORDS Geopolymer concrete, Fly ash, Sodium Silicate, Sodium Hydroxide, curing. INTRODUCTION In 1978, Davidovits suggested that a binder could be generated by a polymerization process including a response between soluble fluids and mixes containing aluminium and silicon. The folios made were termed as “geo polymers”. Not at all like normal Portland/ pozzolanic bonds,geopolymers don’t frame calcium-silicate-hydrates (CSHs) for matrix formative and strength , yet silica and alumina responding with

Title : Expt.1 Determination of the enthalpy (heat) of reaction of a monobasic acid with sodium hydroxide Experiment no : 1 Experiment title : Determination of the enthalpy (heat) of reaction of a monobasic acid with sodium hydroxide Objectives: 1) To understand the enthalpy chemistry. 2) To determine the calorimeter constant. 3) To determine the enthalpy reaction of acid-base reactions. 4) To study the exothermic reaction. Apparatus and Materials : * Dewar flask

The purpose of the lab is to determine the molar concentration of acidic acid in vinegar by titrating it with a solution of NaOH. The sodium hydroxide is a basic solution. When adding it to a acetic acid, a neutralization occurs. An indicator is added to the solution. The indicator is a dark pink color. When the NaOH is added, it makes the solution more basic and causes the solution to turn light pink. The experiment is successfully completed when the right amount of indicator is added, and It turns

place it into a beaker. Then we had to add 6 M sodium hydroxide and glycerol drop by drop while continuously stirring the solution. Once the solution was stirred thoroughly, it then needed to be brought to a boil until it became pasty. In order to turn the solution into a paste, we placed the beaker onto a Bunsen burner and continuously mixed the solution. Once the solution formed a paste, we then let the paste cool. After cooling we added saturated sodium chloride and ice to the mixture, while stirring

feeling on contact with skin. Bases readily accept hydrogen ions and has a pH level that is higher the 7. Bases have a bitter taste and neutralise d by acids, producing water and a salt. Some common laboratory bases are Sodium Hydroxide, Potassium Hydroxide and Calcium Hydroxide. Stronger bases are commonly used today in many cleaning products. Indicators help us find wether if a chemical is an acid or base. The scale that is used to find wether a chemical is an acid or a base is the pH scale. The

it is pink. In an experiment, this point marks when the concentrations of hydronium and hydroxide are equal, so the

the data in table 1 (refer to table 1) the concordant of the three titre values was calculated to be 21.2mL. The results indicate the volume of the titrant, the approximately 0.1 mol sodium hydroxide, required to fully standardise against the primary standard oxalic acid solution was 21.2mL. The sodium hydroxide was then used to neutralise against the 3g analyte, the diluted vinegar solution. The data from table 2 depict that the volume of titrant required to neutralise the analyte was 21.8mL.

Titration Investigation Aim: The aim of my investigation is to determine the solubility of calcium Hydroxide solution with the aid of the titration process. Titration can be defined as the method of determining the concentration of a substance in solution by adding to it a standard reagent of known concentration in carefully measured amounts until a reaction of definite and known proportion is completed, as shown by a color change or by electrical measurement

As shown in Table 3.0, it was difficult to stir and combine the shortening and the lard with the sodium hydroxide and glycerol. Though the oil-based soaps were easy to make, they did not yield as much compared to the fat-based soaps. Table 6.0 shows that Soap 3 which was shortening based and Soap 4 which was lard based produced 11.18 g and 11.22 g, respectively

of moles = molarity x volume The acetic acid content of a vinegar may be determined by titrating a vinegar sample with a solution of sodium hydroxide of known molar concentration (molarity). Acid + Base —> Salt + Water CH3COOH (aq) + NaOH (aq) —> CH3COONa (aq) + H20 (l) At the end point in titration, stoichiometry between both the solutions