precent composition

Percent Composition

Calculate the percent composition of these unknown compounds that are formed from these reactions. Send this file to me through the assignment function.

60.2g of Hg combines completely with 24.0g of Br.
0.219g of La reacts with Oxygen to form a compound with a mass of 0.256.g
0.875g of Al combines completely with 3.45g of Cl.
4.29g of C combines completely with 5.71g of O.

Calculate the percent composition of each of these known compounds.

5. Carvone (responsible for the smell in caraway seeds) C10H14O

6.Sodium tartrate Na2C4H4O6

7. Calcium Hydrogen Oxalate Ca(HC2O4)2

8. Ammonium phosphate (NH4)3PO4

Using the results from problems 5-8, calculate the amount of hydrogen, in grams, in the following amounts of these compounds.

Hint: Multiply the percentage of Hydrogen in each substance by the number of grams given. For example, if the percent of hydrogen in #5 was 25% (just using this as an example) multiply 350 x 25/100 to get the number of grams of hydrogen in #9.

9. 350 g C10H14O

10. 20.2 g Na2C4H4O6

11.124 g Ca(HC2O4)2

12. 378 g (NH4)3PO4

Which of the following compounds has the highest percentage of iron content?

13. Fe2O3, Fe(OH)3 or Fe(C2H3O2)2

Calculate the percent composition of each of these known compounds.

14. Na2O2

15. H2S

16. C16H26O4N2S

17. Mg(OH)2

Solve the followng Problems.

18. How many grams of oxygen can be produced from the composition of 137g of Ca(OH)2?

19. How much iron, in grams, can be recovered from 52.0g of Fe2O3?

20. How much silver, in grams, can be produced from 521g of Ag2S?

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