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21 Cards in this Set
- Front
- Back
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Density
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Mass per unit volume. kg/m3 or g/cm3 or g/mL
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Mass
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measure of the quantity of matter in a body
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Weight
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measure of the gravitational attraction for a body
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Accuracy
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how closely measured values agree with the correct value
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Precision
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how closely individual measurements agree with each other
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Specific gravity
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how dense your substance is relative to water.
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MP water Fahrenheit
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32 F
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MP water Celsius
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0.0 C
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MP water Kelvin
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273 K
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BP water Fahrenheit
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212 F
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BP water Celsius
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100 C
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BP water Kelvin
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373 K
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kelvin and centigrade relationship
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k= c+ 273
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farenhieght and centigrade relationship
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f= (1.8)C+32
or C= (f-32)/1.8 |
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if SG > 1 or w/e meduim is
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substance will sink
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if SG < 1 or w/e medium is
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substance will float!!
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A mole
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atoms, ions, or molecules; a number of things; One mole = 6.022 x 1023 things
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Avogadro’s number
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6.022 x 1023
Symbol for Avogadro’s number is NA. |
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Molar mass
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mass in grams numerically equal to the atomic weight of the element in grams.
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Empirical Formula
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smallest whole-number ratio of atoms present in a compound. Determined from the percent composition of the compound.
which is determined experimentally |
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Molecular Formula
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actual numbers of atoms of each element present in a molecule of the compound
Ethene – C2H4 Pentene – C5H10. Determined from the percent composition of the compound. which is determined experimentally |
