HELP (a Beatle’s Song, and something you might need.

HELP! There is no shame in needing it, if you do.  Sometimes people need help.  Sometimes they can be helpful to others.  There are both times in your life, but if you need help in chem, you need…

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Chemical Reactions Lab

There are 20 experiments over 4 days in lab to get done. Each requires a WORD equation, and then a balanced CHEMICAL EQUATION as well.  You also need to record your observations. Our first lab day we did experiments…

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CuSO4 and MgSO4 Lab Conclusions

First of all, you must review the lab rubric to get points on a lab report.  Some of you miss the intro sentence on the Cover page.  It’s only a point, but it adds some seriousness and some…

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Mole Celebration Thursday Nov 15

What should you study? This is what you should expect… Four total problems. 3 moles problems, and 1 percent comp by mass problem.   Examples… 1.  One moles problem from Liters to Grams or Grams to liters. 2.  One moles problem…

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Atomic Mass vs. Molar Mass???

Questions have arisen in class about how to convert molar mass values into atomic mass values.  This came up with both of the Copper and the Magnesium hydrate labs. In the copper lab, the question was what is…

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Bubble Gum, Mole, and Both Hydrate Labs

The Bubble Gum Lab is really the PERCENT COMPOSITION by MASS OF SUGAR in Bubble Gum.  It’s chemistry math, not chewing gum stuff. The formula in question here is the percent comp by mass formula on the back…

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New Mole Lab Conclusion Option

Mole Lab Conclusion Changed (if you want) You can do the conclusion as is, but I changed it for next year and I will try it out this year if you want to try it.  For the same…

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Moles and Percent Comp by Mass

Moles are central to your understanding of chemistry in the long term.  Their importance can’t be overstated. One mole is 6.02 x 1023 particles (which can be atoms, molecules or even FU’s!) One mole is equal to the molar…

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National Chocolate Chip Cookie Day

November 4th is right around the corner! Celebrate with friends and family.  Eat them, dunk into milk if you like, just eat them and smile. Big ones, small ones, warm ones, half stale ones, even all the way…

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The Periodic Law

The periodic law, on page 124 in the (awful) textbook, reads:   “When the atoms are arranged in order of increasing atomic number, there is a periodic repetition of their physical and chemical properties (in the groups)” What…

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