CHM 2046 Study Guide - Midterm Guide: Flame Test, Litmus, Silver Nitrate
Document Summary
Alums: kal(so4)2, nh4al(so4)2 (only one possible in 5a sample) Dissolve 10-15ml of water to half of your sample. If insoluble (2: only options ca(oh)2, Mg(oh)2: centrifuge solution and use liquid to conduct ph test, confirm ph test with respective anion test. If insoluble, centrifuge and separate precipitation from liquid: solid (2) Follow insoluble flow chart: liquid (1) Conduct anion and cation tests: use solution to conduct anion. Conduct flame test and cation tests: conduct flame test. Supplies litmus paper matches ph indicators (some of each) 6m hac, 2m naoh, 1m hcl, 6m nh3. Test on insoluble compound (2) ph test (neutral water) If sample is insoluble, use a fourth of the original sample and 8ml of neutral water (1/4 sample + 8 ml neutral water, centrifuge, use liquid) Light purple: k+ (no na+ or ca+, maybe others) If not sure: you can use the original solution made or the sample treated with 1m.
