3.93 and 72.2%
Explanation:
Theoretical Yield:
[tex]3.07 \: g \: SO₂ \times \frac{1 \: mol \: SO₂}{64.07g \: SO₂} \times \frac{1 \: mol \: H₂SO₃}{1 \: mol \: SO₂} \times \frac{82.09 \: g \: H₂SO₃}{1 \: mol \:H₂SO₃ } = 3.933 \: g \: H₂SO₃[/tex]
Percent Yield:
[tex] \frac{2.84 \: g}{3.993 \: g} \times 100 = 72.2\%[/tex]