Tuesday 23, 2010

Today we started out class by turning in our lab notebooks but, it quickly turned into a very interesting start. Mr. Hendersons computer was broken therefore projecting a magenta color. Some people claimed it was a "purpendicular" color crayola made so we went on a search to find that color. Sadly we couldnt find any proof that color existed. After that we went on the wikipedia page for green, then Mr. H asked girl students and boy students what color they see, guys saw black and girls saw a dark shade of green, therefore when were all married, the men just agree to the womens color likings. Also, a different chemistry teacher came in and informed us that only male turkeys gobble. That was a great start to a chemistry class.

After our great begining we turned to page 8, to review 7th grade stoichiometry in a very picturesque way. We only did number 4. *NOTE* the white circles that are just floating around[theres four] should have a diagonal line going through them so you know which ones carbon, same in your answer key. In the after reaction box we drew in two H2O four H2 and four CO. The limiting reactant was Carbon.

After that we turned into page 9 in our packets. The page was fairly easy as we breezed through it. We skipped question 6 going on to seven which was finding the molar mass. Then we went on to questions 8 and 9. *NOTE*= The limiting reactant is the reactant that produces the least amount of product.In question eight we had to figure out which was the limiting reactant and then the max mass of NH3. In nine it was pretty much the same except we had to list the limiting reactant.

Here are the answers to page 9:

8) A)1 mole, 3 moles, 34 grams/ 2 moles.

B) 2 mole, 6 moles, 68 grams/ 4 moles

C) 5 mole, 15 moles, 170 grams/10 moles

9)A) 2.21 moles, 6 moles, H2, 68 grams./4 moles

B) 1 mole, 4 moles, N2, 34 grams/ 2 moles

On to page ten, on page ten it was mostly just practice of 8th grade stoichiometry. We had a balanced equation and we had to find the limiting reactant from two masses we were given.

Here is all the work for page 10:

HOMEWORK!:unit five delicious assignment due Tuesday! It will be graded!

Two webassigns if you want extra credit are due Saturday and Monday.

Also, test Friday and lab notebooks will be collected again!