CH20 – Precipitate Lab

Dates

• P1 – Tuesday, October 18th
• P3 – Monday, October 17th
• P5 – Friday, October 14th

Lab Day

• lab waste container

MSDS Sheets (PDF)

• AgNO3 [LINK]
• HCl [LINK]
• CuSO4 [LINK]
• NaI [LINK]
• Pb(NO3)2 [LINK]

Pre-Lab Instructions

• waste container
• location of distilled water
• procedure for rinsing (never dry)
• materials on the lab bench

Data Collection

• watch for contamination
• record carefully
• does color change = PPT?

Writing Reactions

• Full Molecular
• Full Ionic
• Net Ionic

Analysis

• How did the expected results compare with actual?
• What matched?
• What did not?
• Suggest a reason why they did not match

Homework

• Finish work in LNB
• NOTE: do not do sections of lab report that are not indicated here