To Do… Electronic homework Lectures Discussion Section Chapter 9 (Part 1): Friday, March 2 Lectures Chapters 9, 13.10, and 15.6 & 15.7. Discussion Section Turn in Chapter 9 homework. Turn in lab write-up.

Solids, Solutions, and Gases NaHCO3(s) + HC2H3O2(aq) → NaC2H3O2 (aq) + H2O(l) + CO2(g) Which balloon will be the biggest? Trial # Mass of NaHCO3 Volume of 0.833 M HC2H3O2 1 3.30 g 150.0 mL 2 5.70 g 3 10.5 g 4 21.0 g 5 31.8 g

Solids, Solutions, and Gases NaHCO3(s) + HC2H3O2(aq) → NaC2H3O2 (aq) + H2O(l) + CO2(g) Determine the volumes of the balloons. Trial # NaHCO3 HC2H3O2 1 0.0393 mol 0.125 mol 2 0.0679 mol 3 4 0.250 mol 5 0.379 mol

Solids, Solutions, and Gases NaHCO3(s) + HC2H3O2(aq) → NaC2H3O2 (aq) + H2O(l) + CO2(g) Determine the mass of left-over sodium bicarbonate in Trial #5. Trial # NaHCO3 HC2H3O2 1 0.0393 mol 0.125 mol 2 0.0679 mol 3 4 0.250 mol 5 0.379 mol

Solids, Solutions, and Gases NaHCO3(s) + HC2H3O2(aq) → NaC2H3O2 (aq) + H2O(l) + CO2(g) Determine the concentration of left-over acetic acid in Trial #1. Trial # NaHCO3 HC2H3O2 1 0.0393 mol 0.125 mol 2 0.0679 mol 3 4 0.250 mol 5 0.379 mol

Clicker Question N2(g) + 3H2(g) → 2NH3(g) Which of the following reaction mixtures would produce the greatest amount of product, assuming all went to completion? Each involves the reaction symbolized by the equation: N2(g) + 3H2(g) → 2NH3(g) A) 3 moles of N2 and 3 moles of H2 B) 1 mole of N2 and 6 moles of H2 C) 1 mole of N2 and 3 moles of H2 D) Each would produce the same amount of product. 2 mol NH3

Starting with Mass… If you have 48.0 g of oxygen gas and all the hydrogen gas you need, what mass of water is produced? 2H2 + O2 → 2H2O

Starting With Masses You react 84 g of N2(g) with 22 g H2(g) to produce ammonia [NH3(g)]. Determine the mass of ammonia produced. Determine the mass of left-over reactant.