Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
12 Cards in this Set
- Front
- Back
|
All the digits that can be known precisely in a measurement, plus a last estimated digit. |
Significant Figures |
|
|
Substance that does not contain water. |
Anhydrous |
|
|
The volume of 1 mole of a gas at STP; 22.4 L. |
Molar Volume |
|
|
Equal to the molar mass in grams, Avogadro's Number, and 22.4 L of gas at STP. |
Mole |
|
|
The closeness of several measurements; Must be obtained the same way. |
Precision |
|
|
Compound that contains water as part of its structure. |
Hydrate |
|
|
Measures your accuracy in a lab; Error obtained in the lab divided by the actual value; Expressed as a percentage. |
Percent Error |
|
|
How close a measurement comes to the accepted value. |
Accuracy |
|
|
Percent by mass of each element contained in a compound. |
Percent Composition |
|
|
Number of representative particles contained in one mole of a substance; 6.02 x 10^23 particles. |
Avogadro's Number |
|
|
Weight for a formula unit of a compound. |
Molar Mass/Formula Weight
|
|
|
Gives the lowest whole number ratio of all the elements present in a compound; Most reduced chemical formula. |
Empirical Formula |
