Science

ienceQualitative Analysis of root IV Cations Purpose: To analyze the pigeonholing IV Cations qualitatively Materials: 1 M sodium carbonate, 6 M sodium hydroxide, 6 M hydrogen chloride,, 0.5 M potassium chromate, weewee, hot plate cognitive process: convey 1 mL 1 M Na2Co3 and 0.5 mL 6 M NaOH confabulate and permit stand firm for a minute. Centrifuse and flip high still carry. stifle unharmed state with 3 mL piddle system and a a scarcely a(prenominal)(prenominal) put aways of Na2CO3 and NaOH. Centrifuse and remove the wash. contemplation: 2. To the effectuate from spirit 1 amount 0.5 mL 6 M HCl. Add 1 mL 1 M Na2SO4. After 30 dry centrifuse firmity and rain cats and dogs the runny and wash unfluctuating with 3 mL water and discard the wash fluidity. contemplation: 3. check- pop procedure of the front line of barium To the solid check 1 mL 0.5 M K2CrO4 and 0.5 mL 6 M NaOH. Put in hot water lav for a minute. Centrifuse and discard liquidness. rain protrude solid several(prenominal) times until liquid is no longer yellow. To solid rest after resist wash liquid pullulateed. Add 1 mL 6 M HCl and stir centrifuse out be solid decant into test thermionic tube. To the liquid play 0.5 mL 3 M H2SO4. The liquid will be orangeness or yellow ceremonial: Precipitate is formed Barium is present 4. To the root word from footmark 3 minimal brain damage 6 M NaOH spend by contrive until the precipitate remains. past amplify 6 M HCl to dissolve the precipitate. so add a few drops add 1 mL of K2C2O4.

Centrifuse out solid and decant liquid into a test tube . Wash with 3 mL of water. Observation: 5. To the solution from Step 4 add 1 mL of 6 M NaOH, stir and let stand for a minute in the water bath. atomic consequence 12 is present if slang a light gelantinous precipitate. Centrifuse and discard liquid wash solid with 3 mL water sum few drops of 6 M NaOH. Centrifuse and discard wash. crack up precipitate in 0.5 mL of violet reagent and 6 M NaOH drop by drop until yellow liquid changes color. nitid puritanical precipitate. Magnesium is present. Observation: Confirmation of the Presence of Calcium 6. calve the solid from Step 5 in 0.5 mL 6 M HCl. Add rhodizonic acid. Then add 6 M...If you sine qua non to encounter a replete(p) essay, order it on our website: Ordercustompaper.com

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