3 Written questions
2 Multiple choice questions
- The number 6.022 1367 × 10^23, which is the number of representative particles in a mole, and can be rounded to three significant digits: 6.02 × 10^23.
- The SI base unit used to measure the amount of a substance, abbreviated mol; one mole is the amount of a pure substance that contains 6.02 × 10^23 representative particles.
2 True/False questions
empirical formula → A formula that shows the smallest whole-number mole ratio of the elements of a compound, and may or may not be the same as the actual molecular formula.
percent composition → The percent of mass of each element in a compound.