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KMHS_Chemistry
Chapter 6 Vocabulary: Chemical Quantities
Question | Answer |
---|---|
Avogradro's Number | the number of representative particles contained in one mole of a substance. 6.02x10^23 |
Empirical formula | The lowest whole number ratio of atoms in a compound |
molar mass | an expression sometimes used in place of gram formula mass to refer to the mass of a mole of any element or compound. |
mole | the amount of a substance that contains 6.02x10^23 representative particles of that substance. |
percent composition | the percent by mass of each element in a compound |
representative particle | the smallest unit into which a substance can be broken down without a change in composition. |
standard temperature & pressure | (STP)the conditions under which the volume of a gas is usually messured. |