Grade 11 · Week 28 · U7
Essential question: Why do some salts dissolve only slightly, and how can conditions alter solubility?
A small concentration change can trigger precipitation.
Build an initial model and explanation for: Why do some salts dissolve only slightly, and how can conditions alter solubility?
Record observations, questions, an initial model, and one claim that could be tested. Use these concepts where relevant: solubility; saturation; precipitation; Ksp concept; common-ion concept.
Study and explain the week's core ideas: solubility; saturation; precipitation; Ksp concept; common-ion concept
Open solubility-equilibrium text.
Revise Monday's model. Add two evidence-backed annotations and explain one limitation or uncertainty.
Read solubility curves and compare ion products qualitatively.
Show units, setup, calculation or graph reasoning, then write what the quantitative evidence can and cannot establish about: Why do some salts dissolve only slightly, and how can conditions alter solubility?
Solubility-curve/data analysis; no unsupervised precipitation chemistry.
Use the course safety charter. If supervision, facilities, materials, or conditions are not appropriate, use the supplied-data/simulation alternative rather than improvising hazardous procedures.
Record variables or design constraints, procedure/model, observations/data, and one revision you would make after reviewing the evidence.
Answer the essential question: Why do some salts dissolve only slightly, and how can conditions alter solubility?
Submit a claim, at least two specific pieces of evidence, reasoning that connects them, one limitation/counterclaim, and a correction note for any essential concept below 80%.
Select one artifact from this week and explain why it is trustworthy evidence of growth.