JKW Lab

Science Blog, protocols and resources

RedOx

September 30, 2007 Posted by jkwlab | Gen Chem | | No Comments Yet

Titration

September 30, 2007 Posted by jkwlab | Gen Chem | | No Comments Yet

Acid-Base and the Neutralization Reaction

September 30, 2007 Posted by jkwlab | Gen Chem | | No Comments Yet

Solubility

September 30, 2007 Posted by jkwlab | Gen Chem | | No Comments Yet

Combustion fun rehash

~ 7 min

September 17, 2007 Posted by jkwlab | Uncategorized | | No Comments Yet

Lesson 9: Limiting Reactant and percent yield

~ 20 min, long but great imo

Think about combining concepts into a more complicated problem.

September 16, 2007 Posted by jkwlab | Gen Chem | | No Comments Yet

WPR Next Friday

Covers Lsns 1-11. You get your calculator, RDC, and pencils.

Do not study by yourself. Groups are better for problem solving UNLESS you find yourself being LEAD/SPOON FED… if so, find yourself the time to re-work

Go over old WPRs and ensure you can do *every* problem.

Go over as many Combustion (2 variants: CxHy only and CxHyOz) as possible.

Go over as many Limiting Reactant problems as possible.

When I’m authorized to return Quiz #2 I will. Ensure you can max it.

Know the naming flow chart.

HOFBrINCl

Fig. 2.19 with Tables 2.3 and 2.4

element – defined by protons (Atomic Number)

ion – defined by electrons (monatomic or polyatomic)

isotope – defined by neutrons (carbon-12, carbon-13 etc)

Know all Define/Apply terms from the GLOSSARY!!!

Pay special attention to the word problems (like the last one on Quiz 2) where you have to tease out: A) the chemical formula that you need to balance; B) Chemical formulas for individual compounds so you can calculate molar masses; and C) the data you want to start with for your picket fence.

Always start your picket fence with what you want to find, like this (fake numbers):

formula2

September 15, 2007 Posted by jkwlab | Gen Chem | | No Comments Yet

Feedback

Drop me an anonymous feedback via the link I emailed out yesterday or make it more public right here.

September 9, 2007 Posted by jkwlab | Gen Chem | | No Comments Yet

Lsn 8

~ 10 min

September 9, 2007 Posted by jkwlab | Gen Chem | | No Comments Yet

Lsn 7

~ 16 min

September 9, 2007 Posted by jkwlab | Gen Chem | | No Comments Yet