107 Exp 4 Lecture

107 Exp 4 Lecture - n n LookingAhead Experiment 4 n...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Looking Ahead n Next Week – Practical Test Lab n Meet in the lecture first n Makeup for Exp 4 n Apr. 4 (Mon) ~ 7 (Thu) n Not VCL, but real exp in the lab  n Makeup for exp1, 2, and 3 using VCL n Exp1 : Apr. 5 (Tuesday) - #1 and #2 n Exp2 : Apr. 6 (Wednesday) - #3 and #4 n Exp3 : Apr. 7 (Thursday) - #5 and #6 n Written Exam n Same period as exp4 makeup (Mon-Thu n Check Out n Apr. 4 (Mon) – Apr. 13 (Wed) Experiment  4 Common Anions
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Hazards n 18 M H2SO4 is a VERY STRONG  ACID n Inform the TA immediately if spilled n Stored in the Acids only hood n Goggles protect eyes
Background image of page 2
Each 1 drop White solid
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Sulfide Test HNO 3 AgNO 3 Black  precip AgS (s) Then S2- Non-black precip No Sulfide Sulfate, chloride, bromide or Iodide carbonate are present No precip No sulfide No sulfate No chloride No  bromide No iodide Ag+(aq) + S2-(aq)    Ag2S(s) Ag+(aq) + Br-(aq)    AgBr(s) Each 1 drop
Background image of page 4
PO43- n Sulfite easily oxidizes to sulfate n If sulfite is present sulfate will also be present n Multiple unknown  n report all ions present
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 13

107 Exp 4 Lecture - n n LookingAhead Experiment 4 n...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online