Topic C8 - Chemical Analysis Flashcards
What is the definition of purity in chemistry
A pure substance is something that only contains one compound or element throughout
How can you tell if a substance is pure
Chemically pure substance will melt or boil at a specific temperature
You can test the purity of the sample by measuring its melting or boiling point and comparing it to the melting and boiling point of the pure substance
The closer your measurement value is to the actual melting or boiling point the purer your sample is
What is formulation
Are useful mixtures with a precise purpose that are made by following a formula
Why is formulation important in the pharmaceutical industry
Chemistscan make sure it delivers the drug to the correct part of the body of the right concentration that it’s consumable and has a long enough shelflife
What is the test for chlorine
Damp litmus paper bleaches
What is the test for oxygen
A Glowing splint relights
What is the test for carbon dioxide
Colourless lime water turnes cloudy
What is the test for hydrogen
Squeaky pop test
