Neutralization Reports Samples For Students

Introduction

Acids and bases are chemicals with a wide range of applications both industrially and on small-scale basis. According to Arrhenius, an acid is a substance that liberates H+ when placed in water (Slabaugh & Spencer, 167). On the other hand, a base is a substance that liberates OH- when placed in water (Slabaugh & Spencer, 167). To illustrate, pure water dissociates partially to produce hydrogen ions and hydroxide ions as shown in the equation below:
H2Ol H+aq+ OH-aq
In the above equation, water dissociates to produce H+ and OH-. If an acidic substance is placed in water, it reacts with ...

The heat of capacity is usually a positive sign and hence the value for the heat capacity of the calorimeter can be given as 23.4 ± 0.1 J/OC.

Sample for the Calculations Using Trial #1

The weight of cold water was calculated by getting the difference between the weight of the calorimeter together with cold water and the weight of calorimeter as follows
Weight of cold water=51.7g-3.3g
=48.4 grams

The weight of hot water was calculated as follows

=Final weight of calorimeter + water -Weight of calorimeter + cold water
=100.4 g-51.7 g
=48.7 grams

The heat lost by hot water was calculated as follows

heat lost=heat capacity of water ×change in temperature×wight of hot water
=4.18 Jg-1℃-1×48.7 g×7.3 ℃
...

Introduction

An acid that gives two hydrogen ions for every acid molecule is known as diprotic acid. Examples of such acids are sulfuric acid (H2SO4), hydrogen sulfide (H2S), oxalic acid (H2C2O4), chromic acid (H2CrO4) and carbonic acid (H2CO3). Dissociation of a diprotic acid in water takes place in two stages. In the first stage, the diprotic acid dissociates to give one hydrogen ion and a monoprotic form of the acid.
H2X(aq) H+(aq) + HX-(aq)
The second stage involves the dissociation of the monoprotic form of the acid to give the second hydrogen ion and fully dissociated form of ...

ABSTRACT:

A plasmid DNA is an extra-small circular structure commonly found in bacteria which is capable of replicating by itself in the cell. These are used in genetic engineering as vehicles to carry and make copies of a particular gene which can produce desirable effect. In this report, we discuss the isolation and purification of DNA fromEGFP-LC3 plasmidusing a modified alkaline lysis method and QIAprep spin columns. The concentration of the isolated EGFP-LC3 plasmid DNA was found to be 82.868µg/ml. The ratio of ODs taken at A260nm/A280nm was found to be 5.314 which could be because improper washing step which has ...