Download General Chemistry 101 - Abhinandan Chowdhury

General Chemistry
101
Abhinandan Chowdhury (ACh)
Lecturer
Dept. Biochemistry & Microbiology
North South University
Dhaka, Bangladesh
Email; [email protected]
Website: www.abhinandanchowdhury.weebly.com
Room: SAC 833 (C)
Research Interest: Biotechnology, Virology and
Venomics.
Office Hours
Days
Timing
ST
10.30 a.m. – 1.30 p.m.
Lunch
Break
2.30 p.m. – 5.30 p.m.
MW
10.45 a.m. – 11.45 p.m.
Class & Lunch
Break
3.30 a.m. – 5.30 p.m.
You can come in any time during the above
mentioned timings but would be better if
you kindly email me before you visit me.
What we are going to study?
Chapter 1: Basic Chemistry
Chapter 2: Atoms, Molecules, and Ions
Chapter 3: Electronic Structures
Chapter 4: Periodic Properties of Elements
MID 1
Chapter 5: Chemical Bonding and Molecular Geometry
Chapter 6: : Gases
MID 2
Chapter 8: The Mole Concept
Chapter 9: Reaction in Aqueous Solution
Chapter 10: Thermochemistry
Final!!!
How are the marks distributed?
Quiz----------------------------------20 %
Mid 1 + Mid 2 20% + 20% =40%
Class Participation ------------------5%
Final-----------------------------------35%
Exam?
T/F, FB, short question & bonus questions
Rules
• No Make up exams
• Be interactive and attentive in class
• Ask as much as much as question but should be relevant.
• Learn & indented to understand chemistry
What is Chemistry?
Some interesting facts
• There is about 1/2lb or 250g of table salt (NaCl) in the body of an average
adult human.
• Humans have been using chemistry since at least Ancient Egypt. By 1000bce
human civilizations were using advanced forms of chemistry like extracting
metals from ore, fermenting alcohol, and refining plant extracts as medicine.
• If you slowly pour a handful of salt into a completely full glass of water, it
will not overflow. In fact, the water level will go down.
• Although oxygen gas is colorless (light refraction aside), both the liquid and
solid forms are blue.
• Hydrofluoric acid is so corrosive that it will dissolve glass. Although it is
corrosive, hydrofluoric acid is considered to be a ‘weak acid’.
• Approximately 20% of the oxygen in the atmosphere was produced
by the Amazonian rainforests.
• The only elements that are liquid at room temperature are bromine
and mercury.
• Though solid at room temperature, gallium will liquefy in your hand.
• Hydrogen is the most abundant element. About 75% of the elemental
mass of the universe is hydrogen.
• The ethylene gas produced by ripening fruit, ripens other fruit and
vegetables.
• The only letter that doesn’t appear on the Periodic Table of Elements
is J.
• The human body contains enough carbon to produce graphite for about
9,000 pencils.
• If you expose a glass of water to space, it will boil rather than freeze. The
water vapor would almost immediately crystallize into ice.
• Oxygen is the most abundant element in the Earth’s crust, water, and
atmosphere.
• Bee stings are acidic while wasp stings are alkaline.
• Mosquitoes like the scent of estrogen, thus women get bitten more often
than men do.