Chemistry

oppose qualitative and vicenary abridgment soft analysis: involves the determine of species present in a sample and is selective information in word form Quantitative analysis: involves the determine of amounts or niggardliness of specific substances and is numerical data Compare destructive and non-destructive examination Destructive: is when the root word of the testing reply is altered by the chemical analogue and accordingly the original sample is non recoverable. E.g. testing pH of a sample exploitation an indicator. Non-destructive: is when the composition of the testing solution is not altered and the original sample can be reused after testing. E.g. testing pH of a sample using a pH meter. Describe qualitative and/or quantitative tests for hardness, turbidity, and sour (pH) in locate to analyse and compare the shade of piss system samples Hardness: Hardness is due to the presence of meaningful concentrations of atomic number 20 and magnesium ion s in the water.

Hard water is water that does not lather with scoopful and which leaves a grey folderol close to baths and basins; if the water is not hard(and with very low concentrations of calcium and magnesium), thus it is called fluffy water. Ca2+(aq) + 2C17H35COO-(aq) ? Ca(C17H35COO)2(s). The precipitate is also written as (C17H35COO)2Ca Mg2+(aq) + 2C17H35COO- (aq) ? Mg(C17H35COO)2 (s) Qualitative: high levels of Ca2+ and Mg2+ ions make the water hard. This means soap doesnt lather (form froth). Sydney water is identified as soft water as its hardness lies between 10 40 ppm. nutty wa ter: < 75 ppm Hard water: one carbon fif! ty 500 ppmIf you want to get a dear essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper