A chemist makes calcium nitrate. They begin with $8.00\text{ g}$ of pure calcium oxide and an excess of dilute nitric acid. They obtain $12.65\text{ g}$ of dry, pure anhydrous calcium nitrate crystals. Calculate the percentage yield of calcium nitrate. [relative atomic masses, $A_r$: Ca, 40; N, 14; H, 1; O, 16]
- A54.0
- B63.2
- C67.1
- D86.8