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General Chemistry 101

General Chemistry 101. Abhinandan Chowdhury ( ACh ). Lecturer Dept. Biochemistry & Microbiology North South University Dhaka, Bangladesh Email; abcnsuedu@gmail.com Website: www.abhinandanchowdhury.weebly.com Room: SAC 833 (C) Research Interest: Biotechnology, Virology and Venomics.

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General Chemistry 101

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  1. General Chemistry 101

  2. AbhinandanChowdhury (ACh) Lecturer Dept. Biochemistry & Microbiology North South University Dhaka, Bangladesh Email; abcnsuedu@gmail.com Website: www.abhinandanchowdhury.weebly.com Room: SAC 833 (C) Research Interest: Biotechnology, Virology and Venomics.

  3. Office Hours You can come in any time during the above mentioned timings but would be better if you kindly email me before you visit me.

  4. 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!!!

  5. 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

  6. 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

  7. What is Chemistry?

  8. 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’.

  9. 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.

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