Three Questions... again!

*This week was an action packed adventure! I finished the baby bottle lab, with full points on the test runs!! :) I also finished the calcs, just in time to turn them in. From doing the baby bottle lab, I've learned that percent yield SHOULD be over 100% in this lab!  I've learned a lot about stoichiometry, and from the lab, have become very practiced with all of these calculations. I will be studying for the exam in the coming days, continually striving to improve the quality of my work.
  Image from http://www.csmonitor.com/Business/The-Simple-Dollar/2012/0730/Baking-soda-and-vinegar-the-only-cleaning-products-you-should-ever-buy