Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Investigating neutralisation
How to carry out a neutralisation reaction
Physical Science Acids and base
Don’t take our word for it - see why 10 million students trust us with their essay needs.
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 = == == == ==
Reaction Between Hydrochloric Acid and Sodium Thiosulphate Introduction I will be conducting two experiments to determine how two factors affect the rate of reaction in the reaction between hydrochloric acid and sodium thiosulphate. It is a precipitation experiment. The equation allows us to see how this experiment will help us find how rate of reaction changes Sodium thiosulphate + Hydrochloric acid ---- Sodium chloride + Sulphur + Sulphur dioxide + Water Na2S2O3 (aq) + 2HCl(aq) ---- 2NaCl(aq) + S(s) + SO2(g) + H2O(l) The main factors that affect the rate of reaction of any experiment are -Pressure.
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 Effect of Changing Concentration of Hydrochloric Acid on Its Reaction with Carbon Dioxide. Plan Carbonates, including all forms of limestone, react with hydrochloric. acid to produce Carbon Dioxide. Calcium â”14 Hydrochloric â’ Calcium â”14 Water â”14 Carbon. Carbonate Acid Chloride Dioxide I'm going to experiment with changing the concentration of the hydrochloric acid in this reaction and seeing how it affects the amount of Carbon Dioxide that is produced.
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.
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
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.
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.
The simplest experiment for this type of situation would be to use red and blue litmus paper to distinguish between acids, bases and salts. Hydrochloric acid (HCl) makes blue litmus paper change color going from blue to red, making it an acid. Sodium hydroxide (NaOH) makes red litmus paper change color going from red to blue, making it a base. Sodium chloride solution (NaCl) is neutral, since it would only soak blue and red litmus paper, considering that it is a by product of when an acid and a base mix together, neutralizing each other.
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