Mole catcher by: Sam winters A mole catcher is a spy in the war. The second Continental congress created a Secret committee by a resolution on september 18‚1775. The committee was not a true intelligence agency. Since the committee of secret correspondenceoften worked was mainly concerned with obtaining military supplies in secret and distrubting them‚ and selling gun powder previously negotiated by certain members of the congress without the formal sanction of that body.. the committee kept its
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A Mole is a unit‚ or have you heard. Containing six times ten to the twenty- Third‚ That’s a six with Twenty-three zeros at the end‚ Much too big a Number to Comprehend Say you had a Mole of Dimes to Distribute round the world‚ Give to each of the five billion grownups‚ Boys and girls‚ There wouldn’t be a single soul down and out of luck‚ Cause everybody in the world would get a trillion bucks. Or say you had a mole of construction paper and Stacked it towards Space Construction
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tones were not appreciated * Speculum exam- minimal to moderate bleeding * I.E.- Cervix was soft‚ closed‚ non-tender‚ uterus was enlarged to 20 weeks AOG. WORKING DIAGNOSIS Working Diagnosis: G5P5(5-0-0-5) 12 wks AOG with complete h-mole Salient Features: * on and off vaginal spotting for 3 weeks * Positive pregnancy test * Transvaginal Sonography * a complex echogenic uterine mass with numerous cystic spaces * No fetus or amnionic sac seen
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Moles of Iron and Copper Lab Data and Observations Before the reaction: Mass of empty‚ dry beaker: 153.44g Mass of beaker + copper (II) chloride: 161.44g Mass of two iron nails: 7.27g After the reaction: Mass of two iron nails: 6.29g Mass of beaker + copper (dry): 154.50g Questions and Calculations 1. a) Mass of two iron nails before the reaction – Mass off two iron nails after the reaction = Mass of iron used in the reaction = 7.27g – 6.29g = 0.98g
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Master iit academy 2nd Floor‚ Samsung Plaza‚ Near Benz Circle‚ VIJAYAWADA PHYSICAL CHEMISTRY (1) Shielding constant σ for Ne is 4.15 and the effective nuclear charge on Na+ and F- are respectively (A) 4.85 6.85 (B) 5.85 6.85 (C) 6.85 4.85 (D) 4.85 4.85 (2) Electron gain enthalpy and ionization energy of an atom are –a and +b eV respectively. The electronegativity of that atom on Mulliken scale is given by (A) a – b (B) (b – a )/2 (C) a + b (D) (a + b)/2 (3)
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THE MOLE CONCEPT References : Mohammed and Lambert ( Old Edition) Chapter 11 pg. 107 Mohammed and Lambert ( New edition) Chapter 8 pg 123 Anne Tindale Chapter 10 pg 46 The following topics will be covered : 1. Definition of Relative Atomic and Relative Molecular Masses. 2. Calculation of Relative Molecular Masses 3. Converting Moles to Grams / Grams to Moles 4. Calculation from equations Masses of substances /Volumes of gases / Concentration
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Quiz--Moles‚ Mass‚ and Molecules Multiple Choice (Choose the best answer.) 1. What is the mass of one mole of AuCl3? A. 96 g B. 130 g C. 232.5 g D. 303.5 g E. 626.5 g 2. What is the mass of one mole of (NH4)2CO3? A. 144 g B. 138 g C. 96 g D. 78 g E. 43 g 3. A container of negligible mass is filled first with argon and then with helium. Which statement below would be true about the masses of the two gases (after adjustment for the buoyant effect of air)? A. The mass of the helium would be 1/9th
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WS 3.1 The Mole 1. Describe/relate the size of the mole to an everyday object. 2. What is Avogadro’s Number? 3. How many marbles are in a mole of marbles? 4. How many mosquitoes are in a mole of mosquitoes? WS 3.2 Molar Mass Find the molar mass of the following compounds: Show work and include units 1. CO2 2. 3. 4. 5. Fe2O3 6. 7. 8. 9. AgCl 10. 11. 12. 13. Ca3(PO4)2 14. 15. 16. 17. W3(PO3)5 18. 19. 20. 21. Fe(C2H3O2)2 22. 23. 24. 25. Calcium Carbonate 26. 27
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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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1 AND 2 STEP MOLE CONVERSIONS – MORE PRACTICE 1. How many moles does 80.0 grams of H2O represent? 2. How many moles does 45.0 grams of C6H12O6 represent? 3. How many moles does 22.0 grams of CO2 represent? 4. How many moles does 56.0 grams of N2 represent? 5. What is the mass of 2.0 moles of LiOH ? 6. What is the mass of 5.0 moles of Ba(CN)2 ? 7. What is the mass of 3.5 moles of water? 8. What is the mass of 0.75 moles of CuSO4 ? 9. How many atoms does 2.0 moles of He represent? 10. How
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