Calculate the percentage by mass of each of the following component elements in the respective compounds
A. Sulphur intelraoxosulphate (vi) acid, H2 SO4
B. phosphorus intelraoxosulphate (v) acid , H3 PO4
C. Oxygen in calcium trioxanitrate (v), CA ( (NO 3)2
A. Sulphur in intelraoxosulphate (vi) acid, H2SO4:
To calculate the percentage by mass of Sulphur in H2SO4, we need to consider the molar mass of Sulphur and the molar mass of H2SO4.
Molar mass of Sulphur = 32.06 g/mol
Molar mass of H2SO4 = (2 × 1.01) + (1 × 32.06) + (4 × 16.00) = 98.09 g/mol
The mass percentage of Sulphur can be calculated as follows:
(32.06 g/mol / 98.09 g/mol) × 100% ≈ 32.67%
Therefore, the percentage by mass of Sulphur in H2SO4 is approximately 32.67%.
B. Phosphorus in intelraoxosulphate (v) acid, H3PO4:
To calculate the percentage by mass of Phosphorus in H3PO4, we need to consider the molar mass of Phosphorus and the molar mass of H3PO4.
Molar mass of Phosphorus = 30.97 g/mol
Molar mass of H3PO4 = (3 × 1.01) + 30.97 + (4 × 16.00) = 98.00 g/mol
The mass percentage of Phosphorus can be calculated as follows:
(30.97 g/mol / 98.00 g/mol) × 100% ≈ 31.62%
Therefore, the percentage by mass of Phosphorus in H3PO4 is approximately 31.62%.
C. Oxygen in calcium trioxanitrate (v), Ca((NO3)2:
To calculate the percentage by mass of Oxygen in Ca((NO3)2, we need to consider the molar mass of Oxygen and the molar mass of Ca((NO3)2.
Molar mass of Oxygen = 16.00 g/mol
Molar mass of Ca((NO3)2 = 40.08 + (2 × ((14.01 × 2) + (16.00 × 3))) = 164.08 g/mol
The mass percentage of Oxygen can be calculated as follows:
((16.00 × 6 g/mol) / 164.08 g/mol) × 100% ≈ 58.52%
Therefore, the percentage by mass of Oxygen in Ca((NO3)2 is approximately 58.52%.