11) In an experiment, $(120+\mathrm{Y}) \mathrm{mL} 0.6 \mathrm{M} \mathrm{Na}_{2} \mathrm{SO}_{4}$ solution is mixed with $300 \mathrm{~mL} 0.45 \mathrm{M} \mathrm{BaCl}_{2}$ solution and $\mathrm{BaSO}_{4}$ precipitate (solid) is formed according to the below reaction. Calculate the amount of precipitate in grams. . (Atomic mass: $\mathrm{Na}=23, \mathrm{O}=16, \mathrm{~S}=32, \mathrm{Ba}=137, \mathrm{Cl}=35$ )
$$
\mathrm{Na}_{2} \mathrm{SO}_{4}(\mathrm{aq})+\mathrm{BaCl}_{2}(\mathrm{aq}) \rightarrow 2 \mathrm{NaCl}(\mathrm{aq})+\mathrm{BaSO}_{4}(\mathrm{~s})
$$

Question

Accepted Answer

∻Solution∻ ‖ 1 ⋮ **Write the balanced chemical equation**: The balanced chemical equation for the reaction between sodium sulfate and barium chloride is $$ \mathrm{Na_2SO_4(aq) + BaCl_2(aq) \rightarrow 2NaCl(aq) + BaSO_4(s)} $$. ‖ ‖ 2 ⋮ **Calculate moles of reactants**: Use the molarity and volume to calculate the moles of $\mathrm{Na_2SO_4}$ and $\mathrm{BaCl_2}$. For $\mathrm{Na_2SO_4}$, moles = molarity $\times$ volume in liters = $0.6 \, \mathrm{M} \times (120+Y) \, \mathrm{mL} \times \frac{1 \, \mathrm{L}}{1000 \, \mathrm{mL}}$. For $\mathrm{BaCl_2}$, moles = $0.45 \, \mathrm{M} \times 0.3 \, \mathrm{L}$. ‖ ‖ 3 ⋮ **Determine the limiting reactant**: The stoichiometry of the reaction is 1:1, so the reactant with fewer moles is the limiting reactant. ‖ ‖ 4 ⋮ **Calculate moles of precipitate**: The moles of $\mathrm{BaSO_4}$ precipitate will be equal to the moles of the limiting reactant due to the 1:1 stoichiometry. ‖ ‖ 5 ⋮ **Calculate mass of precipitate**: Use the molar mass of $\mathrm{BaSO_4}$ to convert moles to grams. Molar mass of $\mathrm{BaSO_4}$ = $137 + 32 + 4 \times 16$. Mass = moles of $\mathrm{BaSO_4}$ $\times$ molar mass of $\mathrm{BaSO_4}$. ‖ ∻Answer∻ ⚹ [Insert final answer here after calculating with the value of Y] ⚹ ∻Key Concept∻ ⚹ Limiting reactant determines the amount of product formed in a chemical reaction. ⚹ ∻Explanation∻ ⚹ The amount of $\mathrm{BaSO_4}$ precipitate is calculated by finding the limiting reactant and using its moles to find the mass of the precipitate. ⚹◊What is the molar mass of BaSO$_4$?⍭ Generate me a similar question◊

Sia