Qualitative Analysis Essay

Qualitative is where the results wear a colour that you discombobulate to copulate up to a colour chart, or have you have done to work out if it is positive or negative with a description of what a positive answer should look like. This ladder is less authorized as some colour or positive response look similar to each other or the self equivalent(p)(prenominal) entirely by adding different chemicals. An fount of qualitative would be a pH test as the result gives you a colour and then you have to refer it up to the pH scale to give birth you final result. Qualitative analysis is employ to find out different ion in a given sample. This also uninflected chemistry technique, this testing method uses many some other(prenominal) different tests to get a reaction that would link with different ions. IonsAn Ion is an electrically super supercharged particles that are formed when atoms are added or taken way. Metal atoms have positively charged ions and non-metal atoms hav e negatively charged ions. To work out how many ions a metal and non-metal should have is simple. Metals should have the same amount of charged ions as the assemblage number they are in for pattern a metal in gathering 2 will have ii positively charged ions. Non-metals should have the same amount of charged ions as the assort number they are in but minus eight for example a non-metal in group 5 would have 3 negatively charged ions. shun ions are called anions and positive ions are called cations. When testing for cations/metals you could use a flame test this is the simplest and quickest way of test for cations another way that you could test for cations is a sodium hydroxide test this test lie in of adding sodium hydroxide to test obscure when coloured precipitate is formed them regress adding the sodium hydroxide and see what the cation is by using the table below, this table take the stand what colour the precipitate is and any however results.