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Investigating neutralisation
How to carry out a neutralisation reaction
Physical Science Acids and base
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Investigating a Neutralisation Reaction Between Hydrochloric Acid and Sodium Hydroxide
To investigate a neutralisation reaction I must know all the factors
that affect it in order to investigate in this.
Here are all the factors;
Temperature - This will defiantly affect an exothermic or endothermic
reaction.
Concentration - If the solution is made more concentrated it means it
contains more particles of reactant, therefore more collisions are
likely and an result of this is that the temperature will decrease
because bonds are being made.
Type of Acid - Different acids all have different properties and can
cause different temperatures.
Type of Alkali - This is the same as the type of acid but instead the
different properties of an alkali.
Type of Reaction - Different type of reactions will either be
exothermic or endothermic. Example of this is a combustion reaction,
which is exothermic because of the heat it gives out.
These are the factors that will affect a neutralisation reaction. A
neutralisation is either exothermic or endothermic. Exothermic
reactions are the reactions that give out energy and therefore the
temperature rises as a result of this. Endothermic reactions are the
ones that take in energy from the surrounding and cause the
temperature to decrease as a result of this.
Making and breaking bonds either require energy or give out energy.
When breaking bonds it requires energy, which means it's a endothermic
reaction because the heat in the surrounding is absorbed to break the
chemical bond. When making bonds it gives out energy due to the
reaction that has been taken place and means that it's an exothermic
reaction.
Every reaction that happens will either give out energy or take in
energy due to the type of reaction. The reason for this is because it
needs the energy or gives out the energy.
To tell weather it is an exothermic or endothermic reaction a
thermometer can be used to indicate what type of reaction it is. If
the temperature increases it means it is a exothermic reaction and if
Investigating How Concentration of Acid Affects the Reaction Between Calcium Carbonate and Hydrochloric Acid Introduction = == == == ==
Experiment is to investigate the rate of reaction between hydrochloric acid and calcium carbonate Hydrochloric acid + Calcium Carbonate Þ Calcium Chloride + Water + Carbon Dioxide 2HCl (aq) CaCo3 (s) CaCl2(s) H2O (aq) CO2 (g) There are a number of variables in this experiment and these are listed below as input variables and outcome variables.
The amount of the acid. The more acid there is the more alkali will be needed to neutralise it. This is because the volume of acid has increased therefore the volume of alkali needed to neutralise it will need to increase. I have chosen to use universal indicator as this gave me the best results in my preliminary work. I am using an acid with a concentration of 2 mole and an alkali with the strength of 1 mole, this means that it should take 40ml of alkali to neutralise 20ml of acid.
Neutralisation of Stomach Acid Investigation Aim: To find which tablets are best for neutralising excess stomach acid. Introduction: Prediction: I predict that the indigestion tablet with the most carbonates will need the most acids for it to go neutral. The tablets with the least carbonates will need the least amount of acid for it to go neutral. So the best cure for neutralising a build up of stomach I would think would be the tablets with the least amount of carbonates because if you had a liittle amount of stomach acid and you took a tablet with lots of carbonates instead of making it neutral it would make yr stomach alkaline as with the least amount of carbons it would make your stomach more neutral. Research on indigestion tablets
In my experiment I am trying to find out how much acid it takes to
to find the highest and the lowest molar values of acid I will use in
Investigating the Effect of Concentration on the Temperature Rise, Heat Evolved and Heat of Neutralization for the Reaction Between HCl and NaOH
In order for me to carry out my experiments I would need to change the
The Arrhenius equation ln k = ln A – (Ea / RT) can be shown
My aim in this piece of work is to see the effect of temperature on the rate of a reaction in a solution of hydrochloric acid containing sodium thiosulphate.
Alkaline in alkaline water refers to the water's pH level. The pH level, in turn, is a measure of how acidic or alkaline the water is. Typically, the measuring scale for the acidity or alkalinity of a substance is 0 to 14. If a substance has a pH level of 1, it is said to be very acidic and a substance that has a pH level of 13 would be considered very alkaline.
Investigating the reaction Between Sodium Thiosulphate (Na2S2 O3) and Hydrochloric acid (HCl) Aim --- I am investigating the rate of reaction between Hydrochloric acid (HCl) and Sodium Thiosulphate (Na2S2O3), when Na2S2O3 is mixed with water (H20). Background Knowledge The rate of a reaction can be speeded up by increasing the temperature; at a higher temperature the particles move faster and collide more often, as a result of this the reaction speeds up. Increasing the concentration of reactants in water will also speed up the reaction, as there are more reactive particles in the same volume and therefore more chance of a reaction taking place, which speeds up the reaction. This is shown in the diagrams below.
6. I then rinsed out the beaker and glass rod into the flask to make
Acids, which form one H+ ion from each acid molecule, are called Monoprotic. Acids, which form two, are called Diprotic. Acids, which form three, are called Triprotic (e.g. Orthophosphoric Acid [H3PO4]) I predict that for Monoprotic acids (e.g. Hydrochloric) : Concentration of Acid * Volume of Acid = Concentration of Alkali * Volume of Alkali
All this is controlled by hydrogen ions in water, a small number of these molecules will split up. Some of the molecules lose their hydrogen and become hydroxide ions. The non-hydrogen ions join up with water molecules to form a hydronium ion. This can be referred to as (H30+). To make things simpler, hydronium ions are referred as hydrogen ions or (H+). In normal, pure water, there is an equal number of hydrogen ions and hydroxide ions. Therefore water is neither acidic or alkaline. For a substance to be acidic it donates hydrogen ions into dissolved water. This causes the balance of hydrogen and hydroxide ions to shift. The hydrogen ions are therefore multiplied which causes the solution to be mostly hydrogen ions. When this occurs the substance is acidic. Alkaline is also called base or basic which is a substance that accepts hydrogen ions. When alkali is dissolved in water the base “soaks up” hydrogen ions, therefore the result is a solution with a lot of hydroxide