1. You don’t have to be a chem whiz * Chemical engineering requires a basic understanding of chemistry‚ physics‚ math. You’re not required to memorize formulas‚ it’s more important to understand the principles and learn how to apply them to solve a problem/improve status quo. However after a few semesters‚ your brain WILLremember many formulas! * You do need to be analytical and have the ability to think critically. You must be able to look at the problem from a bigger viewpoint but
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Steven Leung 9/19/06 Lab Report The Empirical Formula of a Copper Oxide Purpose: To convert an unknown copper oxide to copper (Cu) metal using natural gas to provide a reducing environment as shown below: Cu O (s) + CH (g) ¨ Cu (s) + Co (g) + H O (g) From the mass difference between the unknown copper oxide and the Cu metal generated at the completion of the reaction and the molar mass of Cu and oxygen‚ the empirical formula of the original copper oxide can be calculated. Materials:
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eye is to be one of the fastest hunters of prey on Earth. The twenty two fleshy tentacles attached to the nose of the Star-nosed Mole are incredibly sensitive to touch and aid the mole in capturing prey. Just how beneficial is the snout of a Star-nosed Mole exactly? They could touch a pin head with their nose six hundred times at once. Crazy enough in a single day‚ this mole can consume up to its own body weight in worms and insects. They as well dig tunnels underground and are a valuable aspect to
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MECHANICAL PROPERTIES Table I lists minimum yield strength‚ minimum ultimate tensile strength‚ and minimum elongation values. Yield strength‚ ultimate tensile strength‚ and elongation property values are determined with standard test method ASTM B557. This table also includes hardness screening criteria values‚ indicated in parentheses. As applicable‚ minimum electrical conductivity values are also specified. TABLE I Minimum Ultimate Tensile Strength3 (ksi) 38.0 38.0 35.0 26.0 38.0 38.0 38.0 25
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HULL 1. Stem 2. Forefoot 3. Keel 4. Rudder post 5. Rudder 6. Propeller 7. Propeller boss 8. Stem 9. Anchor 10. Draught marks 11. Load line markings 12. Deck line HULL INTERIOR 13. Hawse pipe 14. Deck stores 15. Windglass machinery room 16. Spurling pipe 17. Chain locker 18. Fore peak tank 19. No.1 Upper tween deck 20. No.1 Lower tween deck 21. No.1 Lower hold 22. No.1 Double bottom tank 23. No.2 Upper tween
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Homework 2 Solution Key Problem 1. Suppose that you sell short 500 shares of Intel‚ currently selling for $40 per share‚ and you give your broker $15‚000 to establish your margin account. Assume Intel pays no dividends. a) If you earn no interest on the funds in your margin account‚ what will be your rate of return after one year if Intel stock is selling at (i) $44; (ii) $40; (iii) $36? The gain or loss on the short position is 500 P . Invested funds are $15‚000. Therefore‚ your rate
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GCE Edexcel GCE in Mathematics Mathematical Formulae and Statistical Tables For use in Edexcel Advanced Subsidiary GCE and Advanced GCE examinations = Core Mathematics C1 – C4 Further Pure Mathematics FP1 – FP3 Mechanics M1 – M5 Statistics S1 – S4 For use from June 2009 This copy is the property of Edexcel. It is not to be removed from the examination room or marked in any way. = TABLE OF CONTENTS Page 4 Core Mathematics C1 4 4 Mensuration Arithmetic series
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- Politeness formulas in Arabic: When talking about politeness formulas in Arabic and in English and how they are different‚ it is crucial to take into account the distinction between propositional content of a formula and its illocutionary force potential. A good example showing the relationship between semantic content or propositional content and illocutionary force illustrates in using congratulations in English and “shukran” in Arabic which is equivalent to “thanks”. Sometimes illocutionary
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INTRODUCTION TO CHEMICAL BONDS CHEMICAL BOND Definition: A chemical bond is defined as a force that acts between two or more atoms to hold them together as a stable molecule. Main types of bond: 1. Ionic or electrovalent bond‚ 2. Covalent bond‚ 3. Coordinate covalent bond Forth type of bond: Metallic bond: The type of bonding which holds the atoms together in metal crystal. Valence electron: The electrons in the outer most energy level in an atom that takes part in chemical bonding
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N * Variance of population proportion = σP2 = PQ / n * Standardized score = Z = (X - μ) / σ * Population correlation coefficient = ρ = [ 1 / N ] * Σ { [ (Xi - μX) / σx ] * [ (Yi - μY) / σy ] } Statistics Unless otherwise noted‚ these formulas assume simple random sampling. * Sample mean = x = ( Σ xi ) / n * Sample standard deviation = s = sqrt [ Σ ( xi - x )2 / ( n - 1 ) ] * Sample variance = s2 = Σ ( xi - x )2 / ( n - 1 ) * Variance of sample proportion = sp2 = pq / (n
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