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14 Cards in this Set
- Front
- Back
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Ar - Relative Atomic Mass
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-taking into account it's isotopes -relative to 1/12th the relative atomic mass of a Carbon-12 atom |
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Relative formula mass
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-average mass of an entity -relative to 1/12th the mass of a Carbon-12 atom |
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Relative molecular mass
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-relative to 1/12th mass of a Carbon-12 atom |
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What is an ionic bond formed from? |
A Metal and a Non-Metal
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What is a covalent bond formed from? |
Two Non Metals |
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When is molecular mass used? |
For covalent compounds |
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When is formula mass used |
For ionic compounds
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What is Avogadro's constant?
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6.022 x 10^23 |
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Avogadro's number is...
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substance. |
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What rule must be considered when answering questions with decimal places? |
question. |
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How to calculate number of particles in a substance?
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x 6.022 x 10^23 |
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What is Stoichiometry?
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describes the simple whole number ratios in which chemical species react. |
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How do you calculate the number of moles? |
Mass / Relative Formula Mass |
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How to calculate the concentration of a substance? |
Number of moles / volume |
