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Chem Final Review - 1 Law of Multiple Proportions2 Convert...

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1. Law of Multiple Proportions- 2. Convert 5.60 x 10 4 mg to μ g 3. Calculate number of moles of Mg in 3.96 x 10 22 atoms 4. Determine who is reduced/ oxidized and who is RA/ OA: CH 4 (g) + H 2 O(g) ------> CO(g) + 3H 2 (g) 2Ag + (aq) + Cu(s) ------> Cu 2+ (aq) + 2Ag(s) Zn(s) + 2HCl(aq) -------> ZnCl 2 (aq) + H 2 (g) 5. Laser pulse with wavelength 5.25 x 10 -7 m contains 4.40 x 10 -3 J of energy. Find number of Photons present in laser pulse. (E PULSE /E PHOTON = #photons) 6. C 75.69%, H 8.80%, and O 15.51%. What is the Empirical Formula? 7. Dalton’s Atomic Theory- 8. Name the Following: H 2 SO 3 (aq) P 2 S 5 Ni(OH) 3 9. Pauli Exclusion Principle- 10. When 9.05g of NH 3 react with 45.2g CuO, 4.63g N 2 is produced. Find LR, TY, and
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PY. 2 NH 3 (g) + 3 CuO(s) -----> N 2 (g) + 3 Cu(s) + 3 H 2 O(l) 11. Calculate work associated with the expansion of a gas from 53L to 94L at constant external pressure of 16 atm. (1 L atm= 101.3J) 12. Law of Conservation of Energy- 13. Find mass of NaOH contained in 250.0mL of a 0.400 M NaOH solution 14. Write ME, IE, and NE for: reaction between sodium phosphate and copper (I) bromide
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