Answer to Question #183921 in General Chemistry for josh

Question

When mercury (II) oxide is heated, liquid mercury and oxygen gas are the products. What is the maximum mass of mercury that can be produced if 147 L of oxygen gas is collected at standard temperature and pressure?

Answer 1

2 HgO -> 2 Hg + O₂

From the equation 2 moles of Mercury produce 1 mole of Oxygen

Molar Mass of Mercury = 200.59

Molar mass of Oxygen = 30.996

= 0.030996L

= 147/0.030996

= 4742.55 moles × 2

= 9485.1 moles of Mercury

= 9485.1 × 200.59

366.42 × 15.998 /1000

= 1902.616L of Mercury