Pipettes may be used to transfer solutions that are

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Pipettes may be used to transfer solutions that are not in dropper bottles. Do not usethe same pipette for multiple solutions. It may be helpful to label each pipette toindicate the solution it has been used for, particularly for the two iron solutions.Before you begin the task, follow these steps to create a starch solution .Part AFollow these steps to complete the table:1. Label one of the test tubes Fe. Add 4 milliliters of iron(II) sulfate to the test tube.2. Label the other test tube Fe. Add 4 milliliters of iron(III) nitrate to the test tube.3. Add 4 milliliters of potassium thiocyanate to each test tube.4. Observe the contents of the test tubes, noting any evidence of a chemical reaction.Record your observations in the table. If there is no evidence of a reaction, write “noreaction.”2+3+
Answer:Substances MixedIron Ion PresentDescription of the Reactioniron(II) sulfate and potassiumthiocyanateiron(II) (Fe)the color changes iron(III) nitrate and potassiumthiocyanateiron(III) (Fe)color mixedCharacters used: 215 / 150002+3+Cleanup:Pour both solutions down the sink drain along with plenty of running water.Rinse the test tubes with distilled water.Part BFollow these steps to complete the table:1. Reuse the same test tubes from part A, labeled Feand Fe. Be sure they’re clean.2. Add 4 milliliters of iron(II) sulfate to the test tube labeled Fe.3. Add 4 milliliters of iron(III) nitrate to the test tube labeled Fe.4. Add 4 milliliters of potassium iodide to each test tube.5. Add 1 milliliter of the prepared starch solution to each test tube.6. Record your observations, noting any evidence of a chemical reaction. If there is noevidence of a reaction, write “no reaction.”2+3+2+3+
Answer:Substances MixedIron IonPresentDescription of the Reactioniron(II) sulfate, potassium iodide, andstarchiron(II) (Fe)color changes to the blueiron(III) nitrate, potassium iodide,and starchiron(III) (Fe)no reactionCharacters used: 230 / 150002+3+Cleanup:Pour both solutions down the sink drain along with plenty of running water.Pour the extra starch solution down the sink drain.Rinse the flask and test tubes with distilled water. If sediment remains in the testtubes and cannot be rinsed out with water, clean the insides with the test tube brush,and then perform a final rinse with distilled water.

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