Man that is deffinitelly 5,000 mm as 5m=50dm=500sm=5000mm
Molecular weights:
CaCl2 = 40 + 35.5*2 = 111 g/mol
Ca3(PO4)2 = 40*3 + (31+16*4)*2 = 310 g/mol
89.3 g CaCl2 = 89.3/111 = 0.8045 mol CaCl2
Balanced equation:
3CaCl2 + 2Na3PO4 --------> 6NaCl + Ca3(PO4)2
3 moles CaCl2 produce 1 mol Ca3(PO4)2
Therefore 0.8045 mol CaCl2 produces 1/3 * 0.8045
= 0.2682 mol Ca3(PO4)2
= 0.2682 mol * 310 g/mol
= 83.1 g Ca3(PO4)2
Ans: 83.1 g
Answer:
Search Results
Featured snippet from the web
To calculate the numbers of subatomic particles in an atom, use its atomic number and mass number:
number of protons = atomic number.
number of electrons = atomic number.
number of neutrons = mass number - atomic number.
Explanation: