Representative ParticlesType of Substance Description R.P. ( UNIT)
Element 1 symbol ATOM
Covalent Molecule 2 or more NM MOLECULE
Ionic Compound Cation-Anion M -NM
FORMULA UNIT
Determine the type of Representative Particle
1. Mg 2. C3H8
3.NaCl 4. CBr4
5. Li 6. K2O
7. Cl2 8. H2O
How many moles of magnesium is 1.25 x 1023 atoms?
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How many molecules are in 2.12 mole of propane-C3H8 ?
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How many molecules are in 2.12 mole of propane-C3H8 ?
Given Info: 2.12 mole C3H8
Conversions: 1 mole = 6.02x1023
molecule
Work:
2.12 mole 6.02 x 1023 molecule C3H8 C3H8
1 mole C3H8
Looking for? molecules C3H8
Answer: 1.28 x 1024 molecule C3H8
How many grams are in 2 moles of calcium hydroxide?
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How many molecules are in 4.42 x 106g of water molecules?
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How many molecules are in 4.42 x 106g of water molecules?
Given Info: 4.42 x 106g
Conversions:MM = 18.02g H2O 1 mole1mole = 6.02x1023 molecule
Work:
4.42x106g 1 mole 6.02x1023 molecules H2O H2O H2O
18.02 g 1 mole H2O H2O
Looking for?molecules Answer: 1.48 x 1029 molecules
Molar Volume @ STP only
Standard Temperature and Pressure: STP• Standard Temperature: 273K• Standard Pressure: 1 atmosphere (atm)
At these 2 conditions: Molar Volume
1 mole = 22.4L
How many liters are 2.78 x 1031 molecules? Given Info: 2.78 x 1031 molecules
Conversions: 1 mole =6.02x1023 molecules
Work:
2.78 x1031 molecules 1 mole 22.4L
6.02 x 1023 1 mole molecules
Looking for? liters Answer: 1.03 x 109 L
The density of a gaseous compound containing carbon and oxygen is 1.964 g/L @ STP. Determine the molar mass of the compound.
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