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Solutions Essays

solutions

Ammonium hydroxide solution

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

The concentration of nitrate ion in a solution

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

Using Hess's Law to Calculate Enthalpy Change

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)

Investigating Macromolecules and their Properties

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,

A Redox Titration between Manganate (VII) and Iron (II)

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

Determination of the Amounts of Sodium Hydroxide Solution

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

Discussion of Daphnia

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

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