red blood cell and bleeding disorder
□ (A) IgE
□ (B) Complement C3b
□ (C) Histamine
□ (D) IgG
□ (E) Fibronectin
The mineral magnetite is an iron oxide ore that has a density of 5.20 g/cm3. At high temperature, magnetite reacts with carbon monoxide to yield iron metal and carbon dioxide. When 2.660 g of magnetite is allowed to react with sufficient carbon monoxide, the CO2 product is found to have a volume of 1.136 L at 298 K and 751 mmHg pressure.
(a) What mass of iron in grams is formed in the reaction?
(b) What is the formula of magnetite?
(c) Magnetite has a somewhat complicated cubic unit cell with an edge length of 839pm. How many Fe and O atoms are present in each unit cell?