Term

Definition
(average value  true value)  x 100% true value 


Term

Definition
(standard deviation)  x 100% mean(not S.D.'s mean) 


Term

Definition
(Value 1  Value 2)  x 100%  Avg. of values  


Term
standard deviation (excel) 

Definition
formulas > more functions > statistical > stdev.s 


Term
measurements related to systematic error 

Definition
absolute error and percent error 


Term
measurements related to random error 

Definition
standard deviation and coefficient of variation 


Term
measurements related to accuracy 

Definition
absolute error and percent error 


Term
measurements related to precision 

Definition
standard deviation and coefficient of variation 


Term

Definition
closeness of measured value to the true value, correctness 


Term

Definition
closeness of measured values to each other, reproducibility 


Term
calculate moles of a substance given grams 

Definition
# grams / molecular mass of compound 


Term
calculate grams of substance given moles 

Definition
multiply # moles by molecular mass of compound 


Term
calculation for concentration 

Definition
molarity, n (mols of substance) / volume of substance in liters or PPM 


Term
calculate parts per million (PPM) 

Definition
mass of substance in Mg / volume in liters 


Term

Definition


Term

Definition
one amp = one coulomb of charge per second 


Term

Definition
1.602 x 10 ^ 19 coulombs 


Term
40 amp circuit how many coulombs per second? 

Definition


Term
to find the total charge passed through a circuit 

Definition
multiply time (in seconds) by # of amps passed through 


Term
to find # of electrons passed through a circuit 

Definition
multiply # coulombs by the charge of an electron (750C x [1/1.602x10^19]) 


Term
how to type 3.09 x 10^19 into excel 

Definition


Term

Definition


Term

Definition
actual yield / theoretical yield x 100% 


Term

Definition
 C calorimeter X Temperature change 


Term
Delta H mol (enthalpy change per mol of fuel burned) 

Definition
Q rxn / n burned (mols fuel burned) 


Term
Delta H G (enthalpy change per gram of fuel burned) 

Definition
1) delta H mol / molecular mass of fuel 2) Q rxn / mass burned 


Term
how to calculate energy of one photon 

Definition


Term

Definition
plancks constant, 6.626x10^34 joules per second 


Term

Definition
speed of light, 2.9979x10^8 meters per second 


Term

Definition
wavelength in nanometers (must be converted to meters in energy equation) 


Term
how to convert from nanometers to meters 

Definition
multiply the nanometers by (10^9) 


Term

Definition
moles of substance / volume in liters 


Term

Definition
mass of substance in mg / volume in liters 


Term
molarity dilution calculation 

Definition


Term

Definition


Term
bond angle for trigonal planar 

Definition


Term
bond angle for tetrahedral 

Definition


Term
bond angle for trigonal bypyramidal 

Definition


Term
bond angle for octahedral 

Definition


Term
bond angle for 2 groups of electrons 

Definition


Term
bond angle for 3 groups of electrons 

Definition


Term
bond angle for 4 groups of electrons 

Definition


Term
define hydrocarbons vapor pressure and solubility 

Definition
high vapor pressure, insoluble 


Term
define esters vapor pressure and solubility 

Definition
high vapor pressure, high to moderate solubility 


Term
define alcohols vapor pressure and solubility 

Definition
low vapor pressure, high to moderate solubility 


Term
molecular mass equation for chapter 8 

Definition
(Mgas)(R = .0821)(Tbath)/(ambient pressure in atm)(Vbottle volume of gas) 


Term

Definition
Mincrease (avg) + M correction 


Term
equation to find M correction 

Definition
(MM air 29g/mol)(Sample VP atm)(Vbottle in L)/(.0821)(room temp kelvin) 


Term
how to determine formula of ester or alcohol 

Definition
divide its molecular mass by 15, round to nearest whole number, for esters 2 of these numbers will be O atoms, for alcohols one will be an O atom 


Term
typical vapor pressure of ester and hydrocarbon 

Definition


Term
typical vapor pressure of alcohol 

Definition

