amount of substance 2.1-2.5

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  • Created by: joelt2503
  • Created on: 07-11-16 20:16
what is relative atomic mass?
The mass of an atom of an element compared to one-twelfth(1/12) the mass of an atom of carbon-12
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what is relative molecular mass?
The mass of a molecule of a molecule compared to one-twelfth(1/12) the mass of an atom of carbon-12
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how do you find out the no. of moles in a mass of substance?
no. of moles = mass (g) / molar mass (g/mol)
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how can you find the concentration (mol dm-3) of a solution using moles and volume?
moles / Volume (dm3)
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how do you convert from cm3 to dm3?
you divide by 1000 (and vice versa)
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what is the ideal gas equation?
Pv =nRT
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what does P stand for in the ideal gas equation and what are its units?
Pressure in paschals (Pa)
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what does v stand for in the ideal gas equation and what are its units?
Volume in m3
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what does n stand for in the ideal gas equation?
moles of substance
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what is R in the ideal gas equation
it is a constant of 8.31J/K/mol
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what is the empirical formula?
the formula that represents the simplest whole number ratio of atoms of each element present in a compound
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what is T in the ideal gas equation? what are its units ? how can you get to this unit from celsius?
temperature in kelvin (K). K = C + 273
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Other cards in this set

Card 2

Front

what is relative molecular mass?

Back

The mass of a molecule of a molecule compared to one-twelfth(1/12) the mass of an atom of carbon-12

Card 3

Front

how do you find out the no. of moles in a mass of substance?

Back

Preview of the front of card 3

Card 4

Front

how can you find the concentration (mol dm-3) of a solution using moles and volume?

Back

Preview of the front of card 4

Card 5

Front

how do you convert from cm3 to dm3?

Back

Preview of the front of card 5
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