Based on the masses of CaCl2 and Na3PO4 you determine from the periodic table,what mass combining ratio would you predict?
To determine the mass combining ratio between two substances, you need to consider their respective molar masses.
First, you need to find the molar mass of CaCl2 (calcium chloride) and Na3PO4 (sodium phosphate) using the periodic table.
The molar mass of CaCl2 can be calculated by adding the atomic masses of calcium (Ca) and chlorine (Cl). The atomic mass of Ca is 40.08 g/mol, and the atomic mass of Cl is 35.45 g/mol. Multiplying the atomic mass of Cl by 2 (since there are two chlorine atoms in CaCl2) and adding it to the atomic mass of Ca gives us:
Molar mass of CaCl2 = (1 x 40.08) + (2 x 35.45) = 40.08 + 70.90 = 110.98 g/mol.
Similarly, the molar mass of Na3PO4 can be calculated by adding the atomic masses of sodium (Na), phosphorus (P), and oxygen (O). The atomic mass of Na is 22.99 g/mol, the atomic mass of P is 30.97 g/mol, and the atomic mass of O is 16.00 g/mol. Multiplying the atomic mass of Na by 3 (since there are three sodium atoms in Na3PO4), adding it to the atomic mass of P, and then adding the atomic mass of O multiplied by 4 (since there are four oxygen atoms in Na3PO4) gives us:
Molar mass of Na3PO4 = (3 x 22.99) + 30.97 + (4 x 16.00) = 68.97 + 30.97 + 64.00 = 163.94 g/mol.
Now that we have the molar masses of CaCl2 and Na3PO4, we can determine the mass combining ratio. This ratio represents the mass relationship between the two substances when they undergo a chemical reaction.
To do this, divide the molar mass of one substance by the molar mass of the other substance. In this case, we'll divide the molar mass of CaCl2 by the molar mass of Na3PO4:
Mass combining ratio = (110.98 g/mol) / (163.94 g/mol) ≈ 0.677.
Therefore, if you determine the masses of CaCl2 and Na3PO4 based on the periodic table, the predicted mass combining ratio would be approximately 0.677.