Answer:
%age Yield = 96 %
Explanation:
The balance chemical equation for given double replacement reaction is,
Ba(NO₃)₂ + Na₂SO₄ → BaSO₄ + 2 NaNO₃
Step 1: <u>Calculate moles of Ba(NO₃)₂:</u>
Moles = Mass / M.Mass
Moles = 75.1 g / 261.33 g/mol
Moles = 0.2873 moles of Ba(NO₃)₂
Step 2: <u>Find out moles of BaSO₄ formed:</u>
According to balance chemical equation,
1 mole of Ba(NO₃)₂ produced = 1 mole of BaSO₄
So,
0.2873 moles of Ba(NO₃)₂ will produce = X moles of BaSO₄
Solving for X,
X = 0.2873 mol × 1 mol / 1 mol
X = 0.2873 moles of BaSO₄
Step 3: Calculate Theoretical Mass of BaSO₄:
Mass = Moles × M.Mass
Mass = 0.2873 mol × 233.38 g/mol
Mass = 67.07 g of BaSO₄
Step 4: <u>Calculate %age Yield as:</u>
Theoretical Yield = 67.07 g
Actual Yield = 64.4 g
%age Yield = <u>???</u>
Formula Used:
%age Yield = (Actual Yield ÷ Theoretical Yield) × 100
Putting Values,
%age Yield = (64.4 g ÷ 67.07 g) × 100
%age Yield = 96.01 % ≈ 96 %
