Galena (an ore) is partially oxidized by passing air through it at high temperature. After some time, the passage of air is stopped, but the heating is continued in a closed furnace such that the contents undergo self-reduction. The weight (in kg ) of Pb produced per kg of O 2 consumed is ____.…

Question

Galena (an ore) is partially oxidized by passing air through it at high temperature. After some time, the passage of air is stopped, but the heating is continued in a closed furnace such that the contents undergo self-reduction. The weight (in kg ) of Pb produced per kg of O 2 consumed is ____. (Atomic weights in g &#160; mol - 1 : &#160; O = 16 , &#160; S = 32 , &#160; Pb = 207 )

Aicharya · Accepted Answer

mol of Pb = mol of O 2 = 1000 32 m o l mass = moles × molecular mass ∴ Mass of Pb = 1000 32 × 207 g = 207 32 kg = 6 . 47 kg

Galena (an ore) is partially oxidized by passing air through it at high temperature. After some time, the…

Solution