1.4-1.7
Sig Figs:
0.00
4004500 4.50
Bolded are significant
x or / Same sig fig + or – same decimal places
Density P = m/v
Density times volume = mass
Extensive
property: dependent on mass
Intensive:
independent of mass ex. Density
Conversion kg to g then you multiply by 1000g/kg
- Systematic error: built into instrument
- Random Error: human error
- Precision: how closely bundled are results
- Accuracy: how close to real value
2.3-2.8
- Atomic number = proton number (z)BOTTOM
- Mass number (a) = protons+neutrons TOP
- Isotopes= massXabundance add it all up = periodic table number
- Periodic table: ME transit into halogas LA
-1 mole= 6.02*10
23
atoms aka
Molar Mass
3.2-3.6 (3.5 not included)
- Formula mass (ionic compounds) = Molecular mass (covalent) = mass of 1 mole
-
Be careful of units
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- Winter '10
- Cherestes
- Chemistry, Atom, Atomic Number, Chemical element, 1 mole
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