Using a chemistry handbook, write specific instructions...

Using a chemistry handbook, write specific instructions (compounds used, weight of each compound needed) to carry out the following net ionic equations and produce $0.20 \mathrm{~mol}$ of product: $$ \begin{aligned} & 24.13 \mathrm{Co}^{2+}(\mathrm{aq})+2 \mathrm{VO}_4{ }^{3-}(\mathrm{aq}) \rightarrow \mathrm{Co}_3\left(\mathrm{VO}_4\right)_2(\mathrm{~s}) \\ & 24.22 \mathrm{Ag}^{+}(\mathrm{aq})+\mathrm{SO}_4^{2-}(\mathrm{aq}) \rightarrow \mathrm{Ag}_2 \mathrm{SO}_4(\mathrm{~s}) \\ & 24.33 \mathrm{Mg}^{2+}(\mathrm{aq})+2 \mathrm{AsO}_4{ }^{3-}(\mathrm{aq}) \rightarrow \mathrm{Mg}_3\left(\mathrm{AsO}_4\right)_2(\mathrm{~s}) \\ & 24.43 \mathrm{UO}_2{ }^{2+}(\mathrm{aq})+2 \mathrm{VO}_4{ }^{3-}(\mathrm{aq}) \rightarrow\left(\mathrm{UO}_2\right)_3\left(\mathrm{VO}_4\right)_2(\mathrm{~s}) \end{aligned} $$

Using a chemistry handbook, write specific instructions (compounds used, weight of each compound needed) to carry out the following net ionic equations and produce $0.20 \mathrm{~mol}$ of product:
$$
\begin{aligned}
& 24.13 \mathrm{Co}^{2+}(\mathrm{aq})+2 \mathrm{VO}_4{ }^{3-}(\mathrm{aq}) \rightarrow \mathrm{Co}_3\left(\mathrm{VO}_4\right)_2(\mathrm{~s}) \\
& 24.22 \mathrm{Ag}^{+}(\mathrm{aq})+\mathrm{SO}_4^{2-}(\mathrm{aq}) \rightarrow \mathrm{Ag}_2 \mathrm{SO}_4(\mathrm{~s}) \\
& 24.33 \mathrm{Mg}^{2+}(\mathrm{aq})+2 \mathrm{AsO}_4{ }^{3-}(\mathrm{aq}) \rightarrow \mathrm{Mg}_3\left(\mathrm{AsO}_4\right)_2(\mathrm{~s}) \\
& 24.43 \mathrm{UO}_2{ }^{2+}(\mathrm{aq})+2 \mathrm{VO}_4{ }^{3-}(\mathrm{aq}) \rightarrow\left(\mathrm{UO}_2\right)_3\left(\mathrm{VO}_4\right)_2(\mathrm{~s})
\end{aligned}
$$

Key Concepts

Stoichiometry

Stoichiometry is the quantitative relationship between reactants and products in a chemical reaction. It involves using mole ratios determined from balanced chemical equations to calculate the amounts of reactants required to produce a desired quantity of product. This concept is essential in planning and executing a chemical synthesis where precise quantities are needed.

Net Ionic Equations

Net ionic equations focus on the species that actively participate in a chemical reaction, omitting the spectator ions that do not change during the reaction. They simplify understanding and calculation by showing only the chemical species that actually undergo transformation, which is especially useful when dealing with precipitation reactions.

Precipitation Reactions

A precipitation reaction occurs when two soluble compounds react in solution to form an insoluble product, known as the precipitate. Understanding the solubility rules and the conditions under which a precipitate forms is crucial for predicting the outcome of reactions and for the selection of appropriate reagents in experiments.

Mass Calculations

Mass calculations involve converting the desired amount in moles of a chemical species into grams using the compound's molar mass. This step is critical in practical laboratory work where accurate weighing of the reactants ensures that the reaction proceeds as intended and achieves the correct stoichiometry.

Reagent Selection

Reagent selection is the process of choosing appropriate chemical compounds that supply the necessary ions or molecules for a reaction. It takes into account factors such as purity, availability, safety, and the physical and chemical properties of the reagents to ensure that the reaction is carried out effectively and safely.

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