Term
# of Moles Formula
REMEMBER: # of moles = atomic mass of any element. |
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Definition
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Term
A mole is the ______ ______ of ANY element.
1 mole = ______ atoms of ANY ______. |
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Definition
A mole is the ATOMIC MASS of ANY element.
1 mole = 6.022 x 10 ^23 atoms of ANY molecule. |
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Term
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Definition
| (mass/ molar mass) *(6.022 x 10^23) |
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Term
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Definition
| (mass/molar mass) * (6.022 x 10 ^23) |
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Term
| # of Atoms in a Molecule Formula |
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Definition
| (mass/molar mass) * (6.022x10^23 /1) * (# of Atoms in 1 Molecule / 1) |
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Term
| Percent Composition Formula |
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Definition
| (mass of element / molar mass) * 100 |
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Term
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Definition
| % composition / atomic mass |
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Term
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Definition
0.5 multiply by 2!
0.33 or 0.66 multiply by 3!
0.25 or 0.75 multiply by 4!
0.2, 0.4, 0.6, 0.8 multiply by 5!
0.1 or 0.9 then ROUND! |
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Term
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Definition
| (mass of solute / mass of solution) * 100 |
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Term
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Definition
M =
(# of moles / volume liters)
M =
(mass / molar mass x volume in liters)
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(mass / molar mass) = M x V in liters) |
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Term
Stoichiometry
Mole to Mole formula |
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Definition
# of n =
( # of moles of A) * (Coefficient of B) / (Coefficient of A) |
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Term
Stoichiometrey
Gram to Gram Formula & Mass Formula |
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Definition
Mass of B =
(mass A/ molar mass A) * (Coe. B / Coe. A) * (molar mass of B /1)
Mass =
(molar mass) * (# of moles) |
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Term
Stoichiometrey
Percent Yield Formula |
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Definition
(actual yield / calculated yield) x 100
Example: If the reaction x grams of y then find the % yield. |
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Term
Stoichiometrey
Dilution Formuala |
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Definition
M1 x V1 = M2 x V2
mass and volume* |
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Term
Gases
Ideal Gas Law 3 Formula's |
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Definition
PV = (n) x (r) x (t)
Molar mass =
(mass x r x t) / (p x v)
Molar mass =
(d x r x t) / p |
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Term
Ideal Gas Law Formula Units
p =
v =
n =
r =
t = |
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Definition
P = Pressure
In ATM = 760
V = Volume
In Liters
N = # of moles
R = 0.08206
Gas Constant
T= Temperature
In Kelvin
(k =degree Celsius + 273 aka 0 +273) |
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Term
Combined Gas Law Formula
DO NOT convert ml to L. |
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Definition
Combined Gas Law
When you have 2 conditions use:
(P1 x V1)/ T1 = (P2 x V2)/ T2
(You do not need to convert mL to L) |
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Term
| Standard Temperature Pressure means that... |
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Definition
TEMPERATURE = 273Kelvin
PRESSURE = 1 ATM |
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