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Chemistry All Stars

Chemistry All Stars. Alan Chi Chad Gray Ashton H Jenny N. Chemistry All Star. Kelsie Hedlund. Briana B Kristin Dorr Megan H Trevor H Kellie S Alice Tian Kcen Z!. Corrinne Spada!!!.

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Chemistry All Stars

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  1. Chemistry All Stars • Alan Chi • Chad Gray • Ashton H • Jenny N

  2. Chemistry All Star • Kelsie Hedlund

  3. Briana B • Kristin Dorr • Megan H • Trevor H • Kellie S • Alice Tian • Kcen Z!

  4. Corrinne Spada!!!

  5. Lead(II)nitrate solution reacts with sodium sulfate solution to produce lead(II)sulfate solid and sodium nitrate solution. Aluminum iodide solution reacts with lithium hydroxide solution to produce aluminum hydroxide solid and lithium iodide solution.

  6. Carbon tetrahydride gas reacts with oxygen gas to produce carbon dioxide gas and water vapor. Ammonia gas reacts with oxygen gas to produce nitrogen gas and liquid water.

  7. The Math • The equation 1. How many grams of NaOH are there in 400. ml of a 0.40 M solution?

  8. 2. How many moles of HCl are there in 10.0 ml of a 6.0 M solution? 3. Describe how to make 200. ml of a 0.25 M solution of NaCl

  9. Dilution problems • When water is added to a solution, does the number of moles of solute present change?

  10. Since # moles of solute doesn’t change, then, ML = ML conc ‘d dilute This can be used to solve for the molarity of a diluted solution:

  11. If you start with 30. ml of a 2.0 M solution of NaCl, how much water do you need to add to make a 1.25 M solution?

  12. Holiday decorations Get piece of zinc Cover zinc piece with tape. Draw design on tape. Use razor blade (safely!!) to remove part of design that you want to be dark. Dip zinc in copper (II) nitrate solution with tweezers for 10 seconds. Remove tape from zinc. Dry with hair dryer, then spray both sides with hairspray (on paper towel). Allow to dry for 12 minutes.

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