THOMAS GRAHAM

FACTS ABOUT GRAHAM

• He was Scottish
• His father was a textile manufactuer
• His father wanted him to be a part of the church of Scotland
• Worked for two years at Eninburgh University
• Appointed professor of chemistry at Anderson's College

WHEN WAS GRAHAM'S LAW DISCOVERED?

REAL LIFE USES

• Used in making bombs
• Oxygen transport in the lungs
• Respiration
• Finding out what an unknown gas is
• -does this by determing density and molar mass

EXAMPLE

SOLUTION

• Set rate1 = He = x Set rate2 = Ar = 1
• The molecular weight of He = 4.00 The molecular weight of Ar = 39.95
• r1 over r2 = √MM2 over √MM1
• x / 1 = √(39.95 / 4.00)
• x = 3.16 times as fast.

Untitled Slide

CITATION

• Chemteam.info
• Chem.guide.com