How an Aerosol Can Works
At one time or another, most of us have probably used an aerosol can. With just a push of the button, we easily and quickly apply just the right amount of furniture polish, bathtub cleanser, or underarm deodorant. It is obvious to us that the aerosol can is more convenient than the old-fashioned jars of liquid polish or cans of powdered cleanser, which can spill or be applied too thickly. At the same time, however, most of us probably do not know how the aerosol can works. We accept its ease and convenience without realizing that the aerosol can is quite a complex container.
An aerosol is not a simple cleaner or polish; it is a colloidal system. That means it consists of finely divided liquid or solid particles, called a product, dispersed in and surrounded by a gas. The most commonly used gases, or propellants, are chlorinated hydrocarbons, butane, propane, isobutane, vinyl chloride, and nitrogen. Nitrogen is used particularly for products when the taste or smell of the propellant is not desired in the product, for ex...
Investigating How Changing the Concentration of Hydrochloric Acid Affects the Rate of Reaction with Sodium Thiosulphate Solution
and thiosulphate will not be mixed up. The amount of HCl will be 5 cm3
6 Week Training Program For my GSCE Coursework I decided to perform a circuit-training programme for the sport of tennis. This durated for six weeks. I am already an experienced tennis player so this is to be taken into consideration with training procedures and results.
Investigation to find out if changes in concentration of acid affect the rate of a chemical reaction
As I do this experiment the thing I am going to be changing is the
Investigating the Effect of Enzyme Concentration on the Hydrolysis of Starch with Amylase Aim: Investigate the effect of enzyme concentration on the rate of an enzyme-controlled reaction. Using amylase and starch as my example. Introduction: I am investigating the effect of the concentration of the enzyme, amylase on the time taken for the enzyme to fully breakdown the substrate, starch to a sugar solution. The varied variable will be the concentration and all other variables are going to be fixed. The different concentrations will be: 0.5% 0.75% 1.0% 1.5% 2% An enzyme is a class of protein, which acts as a biological catalyst to speed up the rate of reaction with its substrates.
Investigate how the concentration of hydrochloric acid effects the rate at which it reacts with calcium carbonate
Investigating the Factors Influencing the Rate of Reaction Between Sodium Thiosulphate and Dilute Hydrochloric Acid
The Effect of Temperature on the Rate of Reaction of Sodium Thiosulphate and Hydrochloric Acid
The Effect of Temperature on the Rate of Reaction Between Sodium Thiosulphate and Hydrochloric Acid
The Arrhenius equation ln k = ln A – (Ea / RT) can be shown
...st spacecraft. The particles vaporize on impact with solids and pass through gases, but can be trapped in aerogels.
The Effect of Sodium Thiosulphate Solution on the Rate of its Reaction with Hydrochloric Acid
The methods that will be used for extracting volatile components include using a “sniffer.” The “sniffer,” otherwise known as a portable vapor detector, sucks in the air surrounding the questio...
Magic tricks have fascinated people of all ages for centuries. From David Copperfield to Chris Angel, many performers use magic to amaze and astound. One of the least elaborate types of magic tricks is the card trick. There are two main types of card tricks: there are mathematical card tricks and sleight of hand card tricks. The former are simple to learn, but do not impress audiences. To really attract attention, an aspiring magician should learn sleight of hand card tricks. Sleight of hand card tricks are tricks that use misdirection and special manipulations of a deck of cards to do something seemingly impossible. The techniques involved require much practice. While performing a sleight of hand trick, a magician must constantly be distracting the audience. Because of this, many people believe that they are not capable of learning sleight of hand magic. In order to prove them wrong, I will describe a simple sleight of hand trick that anyone can learn, as long as they remember that we all have the potential inside of us to do magic.