Define term mole.
2. What is Avogadro's Number?
3. What is gram atomic weight?
4. What is the difference between CO2and 2CO2?
5. Name the following compounds PC3and SO2.
6. In the smallest whole-number ratio must N and O atoms combine to make dinitrogen to tetroxide N2O4? What is the mole ratio of the elements in this compound?
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The mole allows scientists to calculate the number of elementary entities ... For example, the mean molecular weight of water is 18.015 atomic mass units ... They also need a way to compare these numbers and relate them to the weights of ... defined as the number of elementary particles (molecules, atoms, compounds, etc.) ...
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