Analytical Chemistry Lab: Qualitative Analysis
This lab introduces students to qualitative analysis, identifying constituents of materials through systematic methods. It covers the scale of operations, including cation analysis and preparation of solutions.
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Activities
Quiz23 Questions
Flashcards23 Cards
Study Notes1 Note
Podcast1 Episode
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Analytical Chemistry Lab: Qualitative Analysis
Quiz • 23 Questions
Analytical Chemistry Lab: Qualitative Analysis - Flashcards
Flashcards • 23 Cards
Study Notes
8 min • Summary
Analytical Chemistry Lab: Qualitative Analysis - Podcast
Podcast
Materials
List of Questions23 questions
- Question 1
- reddish brown
- Question 2
- Fe³⁺
- Co²⁺
- Ni²⁺
- All of the above
- Question 3
- True
- False
- Question 4
- CH3CSNH2
- Question 5
- Question 6
- lead oxychloride or silver chloride
- Question 7
- Hg
- Bi
- Sn
- As
- Sb
- Pb
- Cd
- Cu
- Question 8
- True
- False
- Question 9
- 0.3F
- Question 10
- remove the highly colored chromate or dichromate ions
- Question 11
- Na+
- K+
- NH4+
- All of the above
- Question 12
- True
- False
- Question 13
- complete
- Question 14
- 1 mL to 10 mL
- 100 mL to 500 mL
- 1 to 5 mL
- 1 drop to 1 mL
- Question 15
- Water bath
- Question 16
- True
- False
- Question 17
- centrifuge
- Question 18
- Question 19
- vigorous effervescence with KClO3
- Question 20
- white precipitate with H2O2
- Question 21
- yellow precipitate with HCl
- Question 22
- pink color in the CCl4 layer with CCl4
- Question 23
- F^- ions
List of Flashcards23 flashcards
- Card 1HintThink about the color of sunshine. What precipitate color?Memory TipCd + CH3CSNH2 = Yellow 'taxi' precipitate.
- Card 2HintConsider the color of rust mixed with another color. What color?Memory TipArsenic makes a 'rusty' precipitate.
- Card 3HintThink of a light purple/pink color.Memory TipAntimony turns lavender.
- Card 4HintThink about neutral colors after reaction.Memory TipTin leads to a 'neutral' precipitate.
- Card 5HintWhich solution is needed for Group III cation precipitation?Memory TipGroup III likes ammonia-based solutions.
- Card 6HintWhat type of compounds are created when Group III cations precipitate?Memory TipSulfides and hydroxides rain down.
- Card 7HintWhich cations form Group III?Memory TipFind Cool Nickels, Zinc Mans Always Cry.
- Card 8HintWhich sulfides are allowed in Group III?Memory TipZinc, Iron, Cobalt, Nickel, & Manganese.
- Card 9HintWhat role do ammonia and ammonium ions play?Memory TipAmmonia balances; ammonium represses.
- Card 10HintThink of a primary color. What color is the precipitate?Memory TipAluminum makes a 'red' precipitate.
- Card 11HintWhat color does chromium produce?Memory TipChromium goes 'blue' then fades.
- Card 12HintWhat color does zinc produce?Memory TipZinc makes a 'white' precipitate.
- Card 13HintThink of berry colors. What color is produced?Memory TipManganese turns 'berry' colored.
- Card 14HintRust color. What color is produced?Memory TipIron becomes 'deep red'.
- Card 15HintThink about mixed colors. What color is produced?Memory TipCobalt results in 'blue-green'.
- Card 16HintWhat color precipitate is made with Nickel?Memory TipNickel becomes 'red'.
- Card 17HintWhat form precipitates Group IV cations and magnesium?Memory TipPhosphates for alkaline earths, ammonium phosphate for magnesium.
- Card 18HintWhat reagent is used to precipitate Group I cations?Memory TipGroup I precipitates with 'hydrochloric' acid.
- Card 19HintWhich metal sulfides precipitate in Group II?Memory TipCupric, mercuric, lead, bismuth, cadmium, arsenic, antimony, and tin.
- Card 20HintHow are Group IIA and IIB separated?Memory TipA: insoluble, B: dissolves
- Card 21HintWhat color precipitate is produced by lead?Memory TipLead turns 'yellow'.
- Card 22HintResults in darkening of the ppt. What color?Memory TipBismuth turns 'black'.
- Card 23HintWhich element produces enduring yellow flameMemory TipSodium is persistently yellow.