Question

questions:

1. what is a mole?
2. what is avagadros number?
3. name the units we can convert to using mole.
4. make a conversion factor for moles and particles.
5. make a conversion factor for moles and volume.

Explanation:

1. Defines the mole as a standard chemical unit.
2. States the fixed value of Avogadro's number.
3. Lists common units linked to mole conversions.
4. Creates a factor for mole-particle conversion.
5. Creates a factor for mole-volume (gas STP) conversion.

Answer:

1. A mole is the SI unit for the amount of substance, defined as the amount of a substance that contains the same number of elementary entities (atoms, molecules, ions, etc.) as there are atoms in 12 grams of carbon-12.
2. Avogadro's number is approximately $6.022 \times 10^{23}$, representing the number of elementary entities in one mole of a substance.
3. Grams (mass), number of particles (atoms, molecules, ions), and liters (volume of gases at standard temperature and pressure, STP)
4. $\frac{1\ \text{mole}}{6.022 \times 10^{23}\ \text{particles}}$ or $\frac{6.022 \times 10^{23}\ \text{particles}}{1\ \text{mole}}$
5. $\frac{1\ \text{mole}}{22.4\ \text{L}}$ or $\frac{22.4\ \text{L}}{1\ \text{mole}}$ (for gases at STP)