Final answer:
The statement given in the question is True. A 5 mg% solution of calcium has a milliequivalence of 1.25.
Step-by-step explanation:
The statement given in the question is True. We can calculate the milliequivalence of a 5 mg% solution of calcium using the atomic weight and valance of calcium.
To calculate the milliequivalence, we need to determine the millimoles of calcium present in 5 mg% solution. For calcium, the valance is +2, which means each calcium ion carries a charge of +2.
Atomic weight of calcium = 40 g/mol
Milliequivalence = (mass of calcium in mg) / (atomic weight of calcium in mg/mol)
Therefore, Milliequivalence of 5 mg% solution of calcium = 5 mg / 40 mg/mol = 0.125 millimoles
So, the milliequivalence of a 5 mg% solution of calcium is 0.125, which is equal to 1.25 when expressed in milliequivalents.