Final answer:
The percent composition, by mass, of each element in AL2(CO3)3 can be calculated using the formula % by mass = (mass of element / mass of compound) x 100%. For AL2(CO3)3, the percent composition of Aluminum is 99.98%, Carbon is 66.68%, and Oxygen is 99.98%.
Step-by-step explanation:
The percent composition, by mass, of each element in AL2(CO3)3 can be calculated using the formula:
% by mass = (mass of element / mass of compound) x 100%
Let's calculate the percent composition for each element in AL2(CO3)3:
- Aluminum (Al): There are 2 atoms of Aluminum in the compound, and the molar mass of Aluminum is 26.98 g/mol. The molar mass of AL2(CO3)3 can be calculated as follows: 2 x 26.98 g/mol = 53.96 g/mol. So, the percent composition of Aluminum is: (2 x 26.98 g/mol / 53.96 g/mol) x 100% = 99.98%
- Carbon (C): There are 3 atoms of Carbon in the compound, and the molar mass of Carbon is 12.01 g/mol. So, the percent composition of Carbon is: (3 x 12.01 g/mol / 53.96 g/mol) x 100% = 66.68%
- Oxygen (O): There are 9 atoms of Oxygen in the compound, and the molar mass of Oxygen is 16.00 g/mol. So, the percent composition of Oxygen is: (9 x 16.00 g/mol / 53.96 g/mol) x 100% = 99.98%