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6. Complete the Qual II flow diagram (see Dry Lab 4.D, page 411). Ni²+, Fe³+, Al³+, Zn²+ [NaOH] (A.1) [HCI] (B.2) [NH₂SCN] [HNO₂] (A.2) (NH3] (B1) [H₂DMG] (C.1) *Numbers in parentheses refer to parts of the Experimental Procedure. [HNO3] (D.2) [aluminon, NH₂] [HNO3] (D.1) [NH₂] [HCI) (E.1) [K4Fe(CN)]

6. Complete the Qual II flow diagram (see Dry Lab 4.D, page 411). Ni²+, Fe³+, Al³+, Zn²+ [NaOH] (A.1) [HCI] (B.2) [NH₂SCN] [HNO₂] (A.2) (NH3] (B1) [H₂DMG] (C.1) *Numbers in parentheses refer to parts of the Experimental Procedure. [HNO3] (D.2) [aluminon, NH₂] [HNO3] (D.1) [NH₂] [HCI) (E.1) [K4Fe(CN)]

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Chapter1: Chemical Foundations
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Please do question 6

A flow diagram is often used to organize the sequence of test procedures for the sepa- ration and identification of the large number of ions in a mixture. A flow diagram uses several standard notations: • Brackets, [], indicate the use of a test reagent written in molecular form. • A longer single horizontal line, indicates a separation of a precipitate from a solution, most often with a centrifuge. • Two short vertical lines, |, indicate the presence of a precipitate; these lines are drawn to the left of the single horizontal line. • One short vertical line, ], indicates a supernatant and is drawn to the right of the single horizontal line. • A double horizontal line, indicates the presence of soluble ions in the solution. • Two branching diagonal lines, ^, indicate a separation of the existing solution into two portions. • A rectangular box,, placed around a compound or the result of a test con- firms the presence of the ion. D. Constructing Flow Diagrams
Transcribed Image Text:A flow diagram is often used to organize the sequence of test procedures for the sepa- ration and identification of the large number of ions in a mixture. A flow diagram uses several standard notations: • Brackets, [], indicate the use of a test reagent written in molecular form. • A longer single horizontal line, indicates a separation of a precipitate from a solution, most often with a centrifuge. • Two short vertical lines, |, indicate the presence of a precipitate; these lines are drawn to the left of the single horizontal line. • One short vertical line, ], indicates a supernatant and is drawn to the right of the single horizontal line. • A double horizontal line, indicates the presence of soluble ions in the solution. • Two branching diagonal lines, ^, indicate a separation of the existing solution into two portions. • A rectangular box,, placed around a compound or the result of a test con- firms the presence of the ion. D. Constructing Flow Diagrams
4. Aluminum hydroxide is amphoteric, but ferric hydroxide is not. Write equations to show the difference in this chemical property of the two ions. 5. Refer to Dry Lab 4.B. Describe the technique used to test for the completeness of the precipitation of an ion. 6. Complete the Qual II flow diagram (see Dry Lab 4.D, page 411). [HCI] (B.2) [NH₁SCN] [HNO₂] (A.2) I (NH3) (B1) [H₂DMG] (C.1) Ni²+, Fe³+, Al³+, Zn²+ [NaOH] (A.1) *Numbers in parentheses refer to parts of the Experimental Procedure. [HNO3] (D.2) [aluminon, NH₂] [HNO3] [NH3] (D.1) [HCI) (E.1) [K4Fe(CN)6]
Transcribed Image Text:4. Aluminum hydroxide is amphoteric, but ferric hydroxide is not. Write equations to show the difference in this chemical property of the two ions. 5. Refer to Dry Lab 4.B. Describe the technique used to test for the completeness of the precipitation of an ion. 6. Complete the Qual II flow diagram (see Dry Lab 4.D, page 411). [HCI] (B.2) [NH₁SCN] [HNO₂] (A.2) I (NH3) (B1) [H₂DMG] (C.1) Ni²+, Fe³+, Al³+, Zn²+ [NaOH] (A.1) *Numbers in parentheses refer to parts of the Experimental Procedure. [HNO3] (D.2) [aluminon, NH₂] [HNO3] [NH3] (D.1) [HCI) (E.1) [K4Fe(CN)6]
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