General Chemistry Week 1 Notes
General Chemistry Week 1 Notes CHEM 101 - 08
Popular in General Chemistry
Popular in Chemistry
This 3 page Class Notes was uploaded by Samantha Weller on Friday September 4, 2015. The Class Notes belongs to CHEM 101 - 08 at Radford University taught by Timothy J Fuhrer in Fall 2015. Since its upload, it has received 107 views. For similar materials see General Chemistry in Chemistry at Radford University.
Reviews for General Chemistry Week 1 Notes
Why didn't I know about this earlier? This notetaker is awesome, notes were really good and really detailed. Next time I really need help, I know where to turn!
-Maiya Abshire PhD
Report this Material
What is Karma?
Karma is the currency of StudySoup.
You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!
Date Created: 09/04/15
Chemistry 101 General Chemistry Chemistry reveals the secrets of the universe The Scienti c Method Steps dentify a problem Ask a question Propose an answer based on previous knowledge Hypothesis Try to disprove the hypothesis Experiment Revise and retest as necessary Draw conclusions and develop a model Theory Comparison between a Scientist and a Philosopher SCIENTIST PHILOSOPHER Problem Problem Question Question Hypothesis Hypothesis Experiments LogicReasonArgume n s Experiment and Measurement Mass Kg Length m Temperature K Kelvin is the coldest possible temperature Amount of Substance Mole Mole 60210quot23 Electric current A Pre xes Nano 10quot9 Kilo 10quot10 Deka 10quot1 Deci 10quot1 Derived Units Area 1quot2 m or cmquot2 Volume area times length mquot3 or cmquot2 Density Mass per unit volume kgmquot3 or gcmquot3 Speed Distance per unit time ms Acceleration how much speed changes msquot2 Force Mass times acceleration kgmsquot2 or Newton Pressure Force square inch per unit area kg or msquot2 or Pascal Energy Force times distance Measurement of Temperature Fahrenheit normal body temp is 986 F Water freezes at 32 F and boils at 212 F Celsius normal body temp is 37 C Water freezes at 0 C and boils at 100 C Kelvin normal body temp is 31015 K water freezes at 27315 K and boils at 37315 K F c 212 100 32 o 180 100 K c27315 F 95 c 32 Reliability how close a measured value is to the true value How well a number of independent measurements agree with one another MachinesObjects can be accurate but it is us that determines the precision Signi cant Figures Nonzeros are always signi cant Zeros in the middle are always signi cant Zeros at the beginning are never signi cant Zeros at the end are generally considered signi cant if a decimal point is present 0000744 3 sig gures 50000 1 sig gure 0000598000 6 sig gures 50000000 3 sig gures Unit Conservations 0 Dimensional Analysis 0 Conversion factor a fraction used as a multiplier in a dimensional analysis problem where the numerator and denominator are equal 70 mihr 1609m1m 1hr60 min 1 min60 s 7016091 160 3127 ms which is 7000 mihr
Are you sure you want to buy this material for
You're already Subscribed!
Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'