How would using 0.42 grams CH3CO2Na times 3H2O instead of the amount called for in the procedure change the theoretical yield of Fe(C5H7O2)3? Briefly explain. We used 5 grams of CH3CO2Na times 3H2O.

To determine how using 0.42 grams of CH3CO2Na times 3H2O instead of the 5 grams called for in the procedure would change the theoretical yield of Fe(C5H7O2)3, we need to understand the stoichiometry of the reaction.

Stoichiometry refers to the relationship between the amounts of reactants and products in a chemical reaction. It is based on the balanced chemical equation, which shows the relative number of molecules, moles, or grams of each substance involved in the reaction.

In this case, we don't have the balanced chemical equation provided. Therefore, it's difficult to accurately determine the exact change in theoretical yield. However, we can explain the general concept and steps to calculate the change.

1. Obtain the balanced chemical equation: Acetic acid(CH3CO2H) reacts with sodium hydroxide (NaOH) to produce water (H2O) and sodium acetate (CH3CO2Na).

CH3CO2H + NaOH -> H2O + CH3CO2Na

2. Determine the mole ratios: From the balanced equation, we can determine the mole ratios between the reactants and products. In this case, it is 1:1. For every 1 mole of acetic acid, we need 1 mole of sodium hydroxide to produce 1 mole of water and 1 mole of sodium acetate.

3. Calculate the theoretical yield using molar ratios: Convert the given mass of CH3CO2Na times 3H2O (5 grams) to moles using the molar mass. Let's assume the molar mass of CH3CO2Na times 3H2O is 168 g/mol.

Moles of CH3CO2Na times 3H2O = (Mass of CH3CO2Na times 3H2O / Molar mass of CH3CO2Na times 3H2O) = (5 g / 168 g/mol) ≈ 0.03 moles.

As we don't have the balanced equation for Fe(C5H7O2)3, we cannot directly determine the stoichiometric ratio between CH3CO2Na times 3H2O and Fe(C5H7O2)3. Therefore, we can't accurately calculate the change in theoretical yield.

In conclusion, using 0.42 grams of CH3CO2Na times 3H2O instead of 5 grams in the procedure will likely result in a reduction in the theoretical yield of Fe(C5H7O2)3. However, without knowing the exact composition and balanced equation for Fe(C5H7O2)3, it is not possible to provide a precise value or calculate the exact change in yield.

What else is in the reaction? This probably is a limiting reagent problem.