Answer:
B
Explanation:
the answer is B because if you use anything else thats not on there its technically cheating
Answer:
a) 0.023 mol Ca3(PO4)2 from 5.05 g Ca(OH)2
b) 0.034 mol Ca3(PO4)2 from 6.70 g H3PO4
Explanation:
- 3Ca(OH)2 + 2H3PO4 → Ca3(PO4)2 + 6H2O
∴ Mw Ca(OH)2 = 74.093 g/mol
∴ Mw H3PO4 = 97.994 g/mol
a) n Ca3(PO4)2 = (5.05 g Ca(OH)2)×(mol Ca(OH)2/74.093 g)×(mol Ca3(PO4)2/3 mol Ca(OH)2) = 0.023 mol Ca3(PO4)2
b) n Ca3(PO4)2 = (6.70 g H3PO4)×(mol H3PO4/97.994 g)×(mol Ca3(PO4)2/2 mol H3PO4) = 0.034 mol Ca3(PO4)2
A chemical formula that shows the total number and kinds of atoms in a molecule, but not their structural arrangement. For example, the molecular formulaof aspirin is C9H8O4
B. It has the highest pH so it is the most basic, thus containing the highest concentration of hydroxide ions.
Appropriate symbol for an isotope of potassium - 39 corresponding to the isotope notion r A ZX