We started today looking at some more problems and explanations of molar mass and how to use it. Again molar mass is just the mass of 1 mole in grams. This is found on the periodic table and it is the atomic mass.
Look on the last post for examples of what the equations look like.
One of the most important things we learned today was that EVERYTHING must go through moles.
If it is Grams to Particles,it has to go through moles and if it is Particles to grams then it also has to got through moles.
We then did some learning checks problems like the Nutra-sweet problem. For problems like those to calculate the molar mass of something you take each element and treat it like its own part. For the Nutra- Sweet problem it would look like this
C14H18N2O5
(12x14) + (1x18) +(14x2)+(5x16). this is how you find the molar mass of a compound, then you complete the problem like a simple one.
After that we then had the rest of the class period to work with our partners on the Mole Workshop. Those problems are tricky they just need to be thought out and make sure to show your work. Remember that only one person in your pair needs to turn it in tomorrow but it is best if both partners do the work. I am sorry that I can not post the notes on here, I can not seem to find them on slideshare but if you have any questions just post it here or ask a teacher. This website http://www.chem1.com/acad/webtext/intro/MOL.html could also assist you.
Homework tonight: Finish the Mole Workshop and the other Mole worksheet
Study for the quiz tomorrow over dimensional analysis and unit conversions.
Test is coming up the 28th.
Alright well thats all I have have fun studying.
next scribe is Trevor. have fun
Bobby
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