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answerhappygod
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- Name Date Lab Section Results And Discussion Experiment 5 Empirical Formulas A Synthesis And Formula Of Zinc Iodid 1 (44.71 KiB) Viewed 33 times
- Name Date Lab Section Results And Discussion Experiment 5 Empirical Formulas A Synthesis And Formula Of Zinc Iodid 2 (38.01 KiB) Viewed 33 times
Name Date Lab Section, Results and Discussion - Experiment 5 - Empirical Formulas A. Synthesis and formula of zinc iodide. 1. Write the expected balanced equation for the reaction between zine and iodine 2. Mass of beaker 3. Mass of evaporating dish 4. Mass of iodine 5. Mass of zinc 6. Mass of zinc + iodine 7. Observations after addition of water containing acetic acid The reaction mass turned from yellowish red blood, when all the odine was consumed the ppt became colorless 8. Mass of beaker + residual zinc 30-19 9. Mass of residual zinc 10. Mass of zinc consumed in reaction 11. Mass of evap, dish+zinc iodide 12. Mass of zinc iodide 13. a. b. 2n(s) + (02)→→→2012 (92) vial 2 50.49.19 43-719 1:2099 1.2079 2:4169 ta3 inay 75 mass(9)zinc - mass(gresidual Uh.32g 1:289 trial 3 if necessary Mass of zinc iodide + residual zinc Was mass conserved within experimental error in this reaction? Explain your answer. 14. Moles of zinc consumed in reaction 15. Moles of iodine consumed in reaction 16. Mole ratio of iodine to zinc plate umber of sign) 17. Formula of zinc iodide © 2015 Cage Leaming All Rights Reserved. May st be scan cupied or duplicant, or posted to a publicly accessible website, in whole or in part
76 18. Does your experimental formula agree with the expected formula? Explain your answer. Yes, the experimental formula agrees with the expected formula. one zinc atom reacts with two atoms of iodine. 19. In terms of the chemistry and energy of the reaction, explain your observations in #7 above. in the presence of water zinc iodine is formed when zinc reacts with todine 20. Explain why some zinc was left over at the end of the reaction and why you think the amounts were selected to have zinc left over. N/A 21. (optional) What did you observe in the electrolysis reaction? N/A 22. (optional) Were your observations on the electrolysis consistent with your expectations? Explain your answer. ( 4 ( ( E F
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