Solutions Essays

In the strong acid-weak base titration, 0. 1 M ammonium hydroxide ( NH4OH ) was titrated with 0. 1 M hydrochloric acid ( HCl ). 2-3 drops of phenolphthalein were added as indicator into the conical flask which contains 25mL

Chemically modi? ed polymeric adsorbents are resins with functional groups such as phenolic hydroxyl, acetyl, sulfonic group or amino group, grafted on hyper cross linked polymers (Alexandratos & Natesan 1999), (Cai et al. 2005). Among these, aminated hyper cross linked

Controlled variables: – Mass of water – Mass of magnesium sulphate anhydrous – Mass of MgSO4.7H20 Materials: 1) Safety spectacles 2) 2 filter papers 3) Spatula 4) Digital balance 5) 2 polystyrene cups 6) Thermometer 7) Magnesium sulphate anhydrous 8)

Introduction: Background: There are many nutrients that are present in an organism that provides it energy in order to grow and reproduce. Some nutrients are required in larger amounts compared to others. These nutrients, that are required in larger amounts,

Introduction Food colouring are mainly used in the food processing industry today as colour gives the food product certain flavours as people associate colours with certain flavours. Some is to stimulate a colour that is perceived by the consumer as

Objective To determine the enthalpy change of the hydration of magnesium sulphate (MgSO4) using Hess’s law. Procedures 1. The mass of a clean and dry polystyrene foam cup was weighed and recorded. 2. 50.0 cm3 of de-ionized water was measured

Objective: To determine the x in the formula Fe (NH4)2(SO4)2�xH2O by titration against a standard solution of potassium manganate (VII) (permanganate). Theory: The experiment involves a redox reaction between potassium manganate (VII) and ammonium Potassium manganate (VII) is used in

Introduction Sodium carbonate and sodium hydroxide are both alkaline in nature. When hydrochloric acid is added to the mixture, sodium hydroxide reacts like this: NaOH + HCl —–> NaCl + H2O ………………….. (1) Sodium carbonate reacts with hydrochloric acid in

Plan: The experiment that I have carried out is to find out how different concentrations of copper sulphate affect the electrolysis of copper. To measure the affect that the different copper sulphate solution concentrations have on the electrolysis of copper,

The data supported the hypothesis that if Daphnia are placed in differently concentrated solutions of barium and calcium chloride, then the highest concentration of calcium chloride would affect them the most because of the production of hydrochloric acid and calcium