Answer to Question #184286 in General Chemistry for amanda

Question

Theoretical Yield & Percent Yield

1. Given the following equation:

 Al2(SO3)3 + 6 NaOH 🡪 3 Na2SO3 + 2 Al(OH)3

a) If you start with 389.4 g of Al2(SO3)3 and you isolate 212.4 g of Na2SO3, what is your percent yield for this reaction?

2. Given the following equation:

 Al(OH)3 (s) + 3 HCl (aq) 🡪 AlCl3 (aq) + 3 H2O (l)

a) If you start with 50.3 g of Al(OH)3 and you isolate 39.5 g of AlCl3, what is the percent yield?

3. Given the following equation:

 K2CO3 + HCl 🡪 H2O + CO2 + KCl

a) Balance the equation.

b) Determine the theoretical yield of KCl if you start with 34.5 g of K2CO3.

c) Starting with 34.5 g of K2CO3, and you isolate 3.4 g of H2O, what is the percent yield?

4. Given the following equation:

H2SO4 + Ba(OH)2 🡪 BaSO4 + H2O

a) If 98.0 g of H2SO4 is reacted with excess Ba(OH)2, determine the percent yield of BaSO4 if you isolate 213.7 g of BaSO4.

Answer 1

1.Percent yield for this reaction ;

=89.73%

2.Percent Yield for the reaction ;

=78.24%

3.Percent Yield for reaction ;

=84.96%

4.Percent Yield for the reaction ;

=86.23%