Factor Label Review & Mole Calculations. Factor Label Method. write down given value write unit of given in denominator write unit to find in numerator insert numerical values solve. Factor Label Example. How many hours are in 3.75 years? ( Known: 1 year = 365.25 days 1 day = 24 hours ).
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write down given value
write unit of given in denominator
write unit to find in numerator
insert numerical values
( Known: 1 year = 365.25 days 1 day = 24 hours )
Step 1: set up problem by inserting units
Step 2: insert numerical values and calculate
Mole as a number of particles
Molar Volume of a Gas
How many molecules are in 1.75 moles of N2?
How many moles are in 2.59x1022 molecules of N2?
Molar Mass = mass of 1 mole of a substance
Na = 23.0 grams Cl = 35.5 grams
NaCl = 58.5 grams CaCl2 = 111.1 grams
How many grams are in 2.38 moles of NaCl?
How many moles if 97.2 g of NaCl?
MOLE ISLAND !!!
6.02 x 1023