Answer:
To calculate the percent composition of calcium in Ca(C2H302)2, we need to first determine the molar mass of the compound. The molar mass of Ca(C2H302)2 is 224.29 g/mol.
Next, we need to determine the amount of calcium in the compound. The molecular formula of Ca(C2H302)2 indicates that there is one calcium atom for every two carbon atoms. Therefore, the number of calcium atoms in the compound is half the number of carbon atoms.
Therefore, the number of calcium atoms in Ca(C2H302)2 is:
0.5 x 6 carbon atoms = 3 calcium atoms
Now, we can calculate the percent composition of calcium in the compound:
Percent composition of calcium = (mass of calcium / molar mass of compound) x 100%
First, we need to determine the mass of calcium in the compound:
Mass of calcium = atomic mass of calcium x number of calcium atoms
Mass of calcium = 40.07 g/mol x 3 atoms
Mass of calcium = 120.21 g
Now we can calculate the percent composition of calcium:
Percent composition of calcium = (120.21 g / 224.29 g/mol) x 100%
Percent composition of calcium = 53.81%
Therefore, the percent composition of calcium in Ca(C2H302)2 is 53.81%.
Step-by-step explanation: