The ore contains 55.4% calcium phosphate (related to the mineral apatite) so the amount of Ca3(PO4)2 is 55.4%x=1000g so x=1000/0.554= 1.805kg. Now for the % of P in this amount of calcium phosphate, use all the masses of the elements in Ca3PO4= Ca=40.078 x 3= 120.23 and (PO4)2= (30.974+64)2=189.95 (NB oxygen is 16 mass x 4 =64) so the total mass is 310.2 and we have 61.95 of P (Pmass x 2) so 61.95/3102.= 0.19 or 19% P. So of the 1.805 x 0.19= 0.34kg of phosphorus.
Answer:
If a mineral is opaque, lustrous, malleable, and can conduct heat and electricity, it is a "Metal"
D) Metal
Answer:1 two elements and both are nonmetals.
Explanation:
Answer:
0.15 M
Explanation:
14.6/46.07g/mol = 0.316 mol Ethanol.
0.316/2.1= 0.15 M
