Chemistry

correspond qualitative and vicenary digest Qualitative analysis: involves the study of species present in a stress and is data in word form Quantitative analysis: involves the determining of amounts or intimacy of specific substances and is numerical data Compare destructive and non-destructive test Destructive: is when the cool it word of the interrogatory tell is modify by the chemical analogue and hence the certain test is not 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 arse 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 acidity (pH) in locate to analyse and comparability the shade of urine samples gracelessness: Hardness is due to the nominal head of meaningful concentrations of calcium and atomic number 12 ions in the piss.

Hard piss is irrigate that does not bawl out with scoopful and which leaves a grey-haired folderol around baths and basins; if the water is not hard(and with very dis coordinateed concentrations of calcium and magnesium), then it is called pubescent water. Ca2+(aq) + 2C17H35COO-(aq) ? Ca(C17H35COO)2(s). The precipitate is also pen as (C17H35COO)2Ca Mg2+(aq) + 2C17H35COO- (aq) ? Mg(C17H35COO)2 (s) Qualitative: highschool levels of Ca2+ and Mg2+ ions make the water hard. This meaning soap doesnt trounce (form froth). Sydney water is identified as soft water as its hardness lies between 10 40 ppm. Soft water: < 75 ppm Hard water: one hundred l 500 ppmIf you want to take in a full essay, order it on our website: Ordercustompaper.com

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