LAB GROUP LOCATIONS Back of the room 13

LAB GROUP LOCATIONS Back of the room 13 10 7 8 11 6 5 4 9 3 2 1 Front of the room Glass Cabinets Windows 12

STOICHIOMETRY LAB

DECOMPOSITION REACTIONS • Can you predict the products of decomposition reactions? –We haven’t done this, because there are so many possibilities… –But STOICHIOMETRY can help!

THE QUESTION Which chemical equation best represents the heated decomposition of sodium bicarbonate, Na. HCO 3?

THE UNBALANCED POSSIBLE REACTIONS: a) Na. HCO 3 (s) Na. OH (s) + CO 2 (g) b) Na. HCO 3 (s) Na 2 O (s) + CO 2 (g) + H 2 O (g) c) Na. HCO 3 (s) (g) Na 2 CO 3 (s) + CO 2 (g) + H 2 O *notice the states of matter* What will you be measuring in the experiment?

AVAILABLE LAB EQUIPMENT • Bunsen burner • Striker • Ring stand • Iron ring • Crucible & lid • Crucible tongs • Clay triangle • Insulation pad • Balance • Distilled water bottle • Stirring rod

INVESTIGATION PROPOSAL • Safety – What safety precautions should you follow while doing the lab? • Procedures – How will you describe the steps of the lab for a non-chemistry student to complete? • Data Table – What data will you collect and how will

INVESTIGATION PROPOSAL What type of data to collect? – How much Na. HCO 3 will you need? – What will you measure? How will you collect the data? – How long will you need to heat Na. HCO 3? – How will you determine if the reaction is complete? – How will you reduce error? How will you analyze the data? – What type of calculations will you need to

INVESTIGATION PROPOSAL • Title: Investigation Proposal LINED PAPER • Lab Partners ALL MEMBERS • Safety WRITING ON • Procedures PAPER. WORK TOGETHER. • Data Table MUST BE APPROVED BEFORE YOU CAN CONDUCT THE EXPERIMENT

RESULTS As a group determine the answer to the question. All calculations must be submitted with your investigation NEW LINED PAPER proposal. CONSIDERING ITS CALLED “STOICHIOMETRY LAB” YOU SHOULD Title: Result Calculations DEFINITELY HAVE SOME STOICH CALCULATIONS

ARGUMENT POSTER • Collect and analyze your data • Organize and present your results on a poster – Stating question, claim, evidence to support your claim and justification of your evidence

INVESTIGATION PROPOSALS, RESULT CALCULATIONS AND ARGUMENT POSTERS DUE END OF PERIOD ON FRIDAY 2/2

GROUPS – P. 1 • Group 1: – Anna, Olivia & Victoria • Group 2: – Sara, Nayia & Alice • Group 3: – Nawriz, Jonathan & Andrea • Group 4: – Darren, Briana, Terra • Group 5: • Group 7: – Tori, Hao, Eddie • Group 8: – Manny, Alek, Enrique • Group 9: – Sebastian, Jace, Aria • Group 10: – Jazmin, Genesis, David – Jason, Devin, Brian J. • Group 11: – Angela, John, • Group 6: Melissa – Wendy, Samantha, • Group 12: Sofia • Group 13: – Bryan S. , Logan & Jenna Absent:

GROUPS – P. 3 • Group 1: – Melina, Mercedez & Aubriana • Group 2: – Allyssa, Kayla & Hao • Group 3: – Sarah, Marie, Stephanie • Group 4: – Karla, Matthew C. & Mia G. • Group 5: • Group 7: – Justin, Britney, Michelle – Amina, Mia F. & – Raul & Yaneli • Group 8: – Jaylene, Kaylie & Lani • Group 9: – Diana, Brianna & Kat • Group 10: – Samuel, Terrell & Abel – Cesar, Mikala & Xavier • Group 11: • Group 6: • Group 13: – Matthew G, Lucas & Elena Absent:

GROUPS – P. 5 • Group 1: – Kaylor, Roxanna & Grace • Group 2: • Group 7: • Group 13: – Andres, Sam & Enzo • Group 8: – Elias & Daniel – Sade, Nancy & Andrea – Lucia, Ayana & Natalie • Group 9: Absent: – Sebastian, Chelsea & • Group 3: Angel – Briana, Nicole & • Group 10: Ramon – Francisco, Abraham & • Group 4: Jacob – Julian, Carla & • Group 11: Annabelle – Alfonso, Mathew & • Group 5: Oscar – Itzel, Adrian & Brittany • Group 12: • Group 6: – Dominick, Christian & – Angelina, Nicholas & Nalani