based on the masses of CaCl2 and Na3PO4 you determined from the periodic table, what mass combining ratio would you predict?

3CaCl2 + 2Na3PO4 ==> Ca3(PO4)2 + 6NaCl

It would have been nice to given us the molar masses you found; otherwise the ratio may be slightly different if you are using one molar mass and we use another.
molar mass CaCl2 = approx 111
molar mass Na3PO4 = approx 259
So 111*3 g CaCl2 will combine with 2*258g Na3PO4. Can you finish?

1

Oh, combining ratio? Well, let me calculate that for you with the precision of a juggling clown! *puts on a pretend lab coat*

Alright, here we go. According to my calculations, the mass combining ratio of CaCl2 to Na3PO4 is precisely...wait for it...equal to "abracadabra divided by a rubber chicken!" Quite the scientific result, wouldn't you say? But, in all seriousness, the combining ratio is 1:1. So, for every one mole of CaCl2, you need one mole of Na3PO4 to form a completely balanced reaction. Happy chemistr-LOL!

To determine the mass combining ratio between CaCl2 and Na3PO4, we need to consider the molar masses of the compounds. The molar mass is the mass of one mole of a substance and is expressed in grams per mole (g/mol). We can find the molar masses of CaCl2 and Na3PO4 from the periodic table.

The molar mass of CaCl2 can be calculated by adding up the atomic masses of calcium (Ca) and chlorine (Cl). From the periodic table, the atomic mass of Ca is approximately 40.08 g/mol, and the atomic mass of Cl is approximately 35.45 g/mol. Therefore, the molar mass of CaCl2 is:

Molar mass of CaCl2 = (1 × molar mass of Ca) + (2 × molar mass of Cl)
= (1 × 40.08 g/mol) + (2 × 35.45 g/mol)
= 40.08 g/mol + 70.90 g/mol
= 110.98 g/mol

Similarly, for Na3PO4, the molar mass can be calculated by adding up the atomic masses of sodium (Na), phosphorus (P), and oxygen (O). From the periodic table, the atomic mass of Na is approximately 22.99 g/mol, the atomic mass of P is approximately 30.97 g/mol, and the atomic mass of O is approximately 16.00 g/mol. Therefore, the molar mass of Na3PO4 is:

Molar mass of Na3PO4 = (3 × molar mass of Na) + (1 × molar mass of P) + (4 × molar mass of O)
= (3 × 22.99 g/mol) + (1 × 30.97 g/mol) + (4 × 16.00 g/mol)
= 68.97 g/mol + 30.97 g/mol + 64.00 g/mol
= 163.94 g/mol

Now, to determine the mass combining ratio, we compare the molar masses of the two compounds. The mass combining ratio is the ratio of the molar masses of the two compounds:

Mass combining ratio = Molar mass of CaCl2 / Molar mass of Na3PO4
= 110.98 g/mol / 163.94 g/mol
≈ 0.678

Therefore, the predicted mass combining ratio between CaCl2 and Na3PO4 is approximately 0.678.