H2(g) + CO2(g) H₂O(g) + CO(g) Solution First we will set up an equilibrium table. It is important to understand how to set up this table, because we will use this throughout the course. Steps to set up an equilibrium table. 1) Set up table format, it is always the same. Initial (1) Change (C) Equilibrium (E) Initial (I) Change (C) Equilibrium (E) H2(g) + CO2(g) 2) Fill in the initial concentrations from the given information in the problem. H2(g) + Ş 1M Initial (I) Change (C) Equilibrium (E) H2(g) + 1M CO2(g) IM -X 3) To determine the change, you subtract "x" multiplied by the stoichiometric coefficient from the non-zero concentrations, and add "x" multiplied by the stoichiometric coefficients to the zero concentrations. This is the procedure to use only when we have zero concentrations of products or reactants. ↓↑ CO2(g) IM H₂O(g) + CO(g) -X H₂O(g) + CO(g) 0 0 H₂O(g) + CO(g) 0 0 +x + X

The literature value for the melting point of your product was 144-146 °C. Below is the data for 4 students, which student had the purest crystals AND the correct product. Student A: melting point range of 141-142 °C Student B: melting point range of 138-146 °C Student C: melting point range of 150-151 °C Student D: melting point range of 139-143 °C O OB O A O с D

(CH3)2CHCH,CHO 1. NH3 2. NaCN, HCI 3. HCI, H₂O, heat

CONCLUSIONS: In general, the boiling points of compounds increase down a group in the periodic table. The melting points and boiling points for the hydrogen compounds of group 6A elements are in the table below. Melting Point (°C) Boiling Point (°C) H₂O 0.0 100.0 H₂S -82.0 -60.0 H₂Se -65.7 -41.2 H₂Te -49.0 -2.2 Use your understanding of chemistry to propose an explanation for the anomaly in the trend for the hydrogen compounds of group 6A elements shown in the table.

However, there are many other commercially purchased inorganic and organic compounds that people routinely used in their households (or in their everyday lives). A list of 19 chemicals with common names are written below. Find each of these items in your home or in a local grocery and take picture of the container (if you do not have access to all of them choose at least 12 of them) and then complete the table below. For #16 and 17 you choose any other house hold chemical and complete the table. • Inorganic compounds 1) table salt, 2) baking soda, 3) washing soda, 4) photographic fixer, 5) Epsom salt, 6) alum, 7) chalk, 8) corn starch, 9) sand, 10) active ingredient in toothpaste or cleansing agent and disinfectant, 11) decolorizing carbon Organic compounds Naming of organic compounds will be discussed in details in Lab 10 however there are still some simple organic compounds that you encounter at your home. Organic compounds are compounds that contain at least one carbon with one…