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AnaChem > (F) LE5 > Flashcards

(F) LE5 Flashcards

1
Q

confirmatory agents of Ag+

A

HCl and NH3 + HNO3
(Hydrochloric acid) and Ammonia + nitric acid

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2
Q

confirmatory agents of Pb+

A

HCl (hydrochloric acid) and K2CrO4 (potassium chromate)

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3
Q

T or F : white AgCl formation are the confirmatory substances formed from hydrochloric acid but not ammonia with nitric acid.

A

False (AgCl for both)

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4
Q

What is the confirmatory color for Ag+?

A

white

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5
Q

T or F: (NH4)2S (ammonium sulfide), NH4Cl (ammonium chloride) and HNO3 (Nitric acid) causes a blue colored solution when reacted with Cu2+

A

(False) ammonium chloride causes the precipitates to dissolve

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6
Q

substance formed when cu2+ reacted with ammonium sulfide

A

CuS

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7
Q

substance formed when ammonia reacted with cu2+

A

Cu(NH3)4^2+ (aq) tetraaminediaquacopper (II)

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8
Q

color of the solution when ammonia reacted with cu2+

A

dark blue

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9
Q

color of the solution when ammonium chloride reacted with cu2+

A

N/A

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10
Q

what confirmatory reagent is reacted with Cu2+ to precipitate CuNO3 (copper (I) nitrate)?

A

HNO3 (nitric acid)

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11
Q

T or F: Al3+ always turns white except when catechol violet is used

A

True

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12
Q

which reagents form Al(OH)3 S when reacted with Al3+?

A

NH4OH (Ammonium Hydroxide) and CH3COOH (acetic acid) + NH3 (ammonia)

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13
Q

This is the confirmatory reagent that precipitates Al2s3 (Aluminum sulfide) when reacted with Al3+

A

(NH4)2S (ammonium sulfide)

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14
Q

The substance formed when Al3+ reacted with catechol violet

A

Al(Cat) (aq) hehehhehehe aqua cat

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15
Q

The reagent used to precipitate AlCl (aluminum Chloride)

A

HCl (hydrochloric acid)

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16
Q

T or F : Fe3+ turns reddish-brown when reacted with HCl

A

False (HCl dissolves the precipitate)

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17
Q

the reagent that turns the solution dark red when Fe3+ ions are present

A

KSCN (potassium thiocyanate)

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18
Q

Color of the solution when Fe3+ reacted with either NaOH (sodium hydroxide) + H202 (hydrogen peroxide) or (NH4)2S (ammonium sulfide)

A

black

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19
Q

this reagent precipitates Fe2S3 (iron sulfate) when reacted with Fe3+

A

ammonium sulfate

20
Q

The result of the reaction between Fe3+ and KSCN (potassium thiocyanate)

A

Fe(SCN)3 (ferric thiocyanate)

21
Q

causes a reddish brown solution and precipitates Al(OH)3 (aluminum hydroxide)

A

NH4OH (ammonium hydroxide)

22
Q

the color of the solution when zinc is present

A

white and grayish white (for CH3COOH + H2S)

23
Q

The reagent that forms ZnS (Zinc sulfide) when reacted with Zinc

A

CH3COOH (Acetic acid) + H2S (hydrogen sulfide)

24
Q

The precipitate when NaOH (sodium hydroxide) + H2O2 (hydrogen oxide) reacts with Zn

A

Zn(OH)2 zinc hydroxide

25
Q

ilan na pusa ni nath

A

14

26
Q

Substance formed when Zn reacts with HCl

A

n/a (hcl dissolves the precipitate)

27
Q

result of the reaction between Zn and NH4OH (ammonium hydroxide)

A

Zn(OH)2 zinc hydroxide

28
Q

which reagents forms ZnS with Zn

A

CH3COOH + KNO2 (acetic acid and potassium nitrite) and (NH4)2S (ammonium sulfide)

29
Q

These reagents dissolves the precipitate when reacted with Co2+?

A

HNO3 (nitric acid) and (NH4)2S (ammonium sulfide)

30
Q

which reagent results in a clear solution when reacted with Co2+?

A

HNO3 (nitric acid)

31
Q

The resulting color when Co2+ reacts with NH4OH (ammonium hydroxide)

A

pink

32
Q

This reagent causes a white colored solution when reacted with Co2+

A

NaOH (sodium hydroxide) + H2O2 (hydrogen oxide)

33
Q

Creates a black colored solution when reacted with Co2+

A

HCl

34
Q

The precipitate fomed when HCl reacts with Co2+

A

CoS (cobalt sulfide)

35
Q

The precipitate fomed when Co2+ reacts with acetic acid and potassium nitrite

A

K3(Co(No2) 6 potassium cobainitrite

36
Q

this reagent precipitates Co(OH)2 (cobalt hydroxide)

A

NH4OH (ammonium hydroxide)

37
Q

These reagesnt dissolves the precitate when reacted with Ni2+

A

HNO3 (Nitric acid) and HCl (Hydrochloric acid)

38
Q

precipitates Ni(OH)2 (nickel (ii) hydroxide) when reacted with Ni2+

A

NH4OH (Ammonium hydroxide)

39
Q

The substance formed when Ni2+ is reacted with (NH4)2S (ammonium sulfide)

A

NiS (nickel sulfide)

40
Q

the precipitate formed from the reaction between DMG (dimethylglyoxime) and Ni2+

A

Ni(DMG)2 (Nickel Dimethylglyoxime)

41
Q

Creates a green-blue solution with Ni2+

A

(NH4)2S (ammonium sulfide)

42
Q

causes a cherry-red precipitate when Ni2+ ions are present

A

DMG

43
Q

causes a cherry-red precipitate when Ni2+ ions are present

A

DMG Dimethylglyoxime

44
Q

results in a clear solution when Ni2+ is present

A

HNO3

45
Q

cations under group1

A

ag and pb

46
Q

cations under group2

A

cu

47
Q

cations under group 3

A

Al, Fe, Zn, Co, and Ni (AFeCZN = affection)

AnaChem (9 decks)

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