<span>One degree Celsius indicates the same temperature change as one </span>
Gravitational, elastic, and chemical are three forms of potential energy.
Answer:
1.06g of BaSO₄ is produced
Explanation:
BaCl₂(aq) + Na₂SO₄(aq) ⇄ 2NaCl(aq) + BaSO₄(aq)
mole BaCl₂ = (0.16M × 0.030L) = 0.0048mole BaCl₂
mole Na₂SO₄ = (0.065M × 0.070L) = 0.00455mole Na₂SO₄
Amount of product BaSO₄ produce from each reagent
BaCl₂ = (0.0048 BaCl₂) × ( 1 mol BaSO₄ / 1mol BaCl₂) × (233.3896g BaSO₄ / 1mol BaSO₄)
= 1.12g BaSO₄
Na₂SO₄ = (0.00455 Na₂SO₄) × ( 1 mol BaSO₄ / 1mol Na₂SO₄) × (233.3896g BaSO₄ / 1mol BaSO₄)
= 1.06g BaSO₄
The equation for percent yield is

As such, the theoretical yield or expected yield is, in this case, 122.7g of Pb, the actual in this case is 107.9g so we have

Therefore, the percent yield of her reaction is 89.94%