Percentage yield

Stage 1

1. Calculate the percentage yield for a chemical reaction with a maximum theoretical mass of 16.47g where 9.39g of product was produced.

2. Calculate the percentage yield for a chemical reaction where 1.13g of product was produced and the maximum theoretical mass was 14.18g

3. Calculate the percentage yield for a chemical reaction with a maximum theoretical mass of 17.51g where 7.18g of product was produced.

4. Calculate the percentage yield for a chemical reaction where 1.23g of product was produced and the maximum theoretical mass was 1.89g

5. Calculate the percentage yield for a chemical reaction with a maximum theoretical mass of 2.31g where 0.6g of product was produced.

Stage 2

6. Find the maximum theoretical mass of a chemical reaction with a percentage yield of 76% which produced 14.9g of product.

7. Find the mass of product produced by a chemical reaction with a percentage yield of 32% and a maximum theoretical mass of 3.94g.

8. Find the maximum theoretical mass of a chemical reaction with a percentage yield of 66% which produced 8.03g of product.

9. Find the maximum theoretical mass of a chemical reaction with a percentage yield of 17% which produced 2.77g of product.

10. Find the mass of product produced by a chemical reaction with a percentage yield of 69% and a maximum theoretical mass of 4.79g.

Stage 3

11. In the chemical reaction shown below, 800g of calcium carbonate, CaCO3, was reacted and 152.32g of calcium oxide, CaO, was obtained. Calculate the percentage yield.

CaCO3 --> CaO + CO2

12. In the chemical reaction shown below, 1g of hydrogen, H2, was reacted and 4.2g of ethene, C2H4, was obtained. Calculate the percentage yield.

2H2 + 2C --> C2H4

13. In the chemical reaction shown below, 16g of sulfur, S, was reacted and 11.94g of copper sulfide, CuS, was obtained. Calculate the percentage yield.

S + Cu --> CuS

14. In the chemical reaction shown below, 160g of oxygen, O2, was reacted and 208.8g of manganese oxide, MnO2, was obtained. Calculate the percentage yield.

Mn + O2 --> MnO2

15. In the chemical reaction shown below, 1137.5g of iodine monochloride, ICl, was reacted and 1258.57g of iodine trichloride, ICl3, was obtained. Calculate the percentage yield.

ICl + Cl2 --> ICl3

Stage 1

1. 57%

2. 8%

3. 41%

4. 65.1%

5. 26%

Stage 2

6. 19.61g

7. 1.26g

8. 12.17g

9. 16.29g

10. 3.31g

Stage 3

11. 34%

12. 60%

13. 25%

14. 48%

15. 77%