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23 Cards in this Set
- Front
- Back
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The sum of the relative atomic masses of each of the atoms in a molecule.
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What does the avagadro number mean?
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The number of particles in one mole of substance. 6.022 x 10^23
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What do the same numbers of moles of different substances have in common?
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The same number of particles.
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Define the mole.
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The number of particles in 12g of Carbon-12.
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Define the term molar mass.
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Mass per mole of substance (kg mol^-1). Same numerically as M^r.
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What is the formula for calculating moles (n)?
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What is the ideal gas equation?
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Define the term empirical formula.
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The simplest, whole number, ratio of elements in a compound.
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Define the term molecular formula.
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The exact number of atoms of each element in the formula of a compound.
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How do you find the molecular formula?
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Relative molecular mass/relative mass of empirical formula.
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What is the formula for calculating concentration.
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What is the formula for calculating atom economy?
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Calculate the atom economy for the methanol in the following equation.
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What is the formula for calculating percentage yield?
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State the basic assumptions about ideal gas equation.
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>Made up of identical particles in continuous random motion
>Particles do not react when they collide >Collisions between particles are perfectly elastic >Particles have no intermolecular forces |