What are the units that Molarity is expressed in?A.) Gram/litreB.) Moles/litreC.) Litre/moleD.) Moles/1000 grams
Molarity (M) is defined as the number of moles of solute dissolved in one liter of solution. Therefore, it is expressed as:
\[
\text{Molarity (M)} = \frac{\text{moles of solute}}{\text{volume of solution in liters}}
\]
Thus, the correct unit for molarity is **moles per liter (moles/L)**.
### Correct Answer:
**B.) Moles/litre**
Explanation:
- **Gram/litre (A)**: This would represent a concentration in mass per volume, which is different from molarity.
- **Litre/mole (C)**: This is the inverse of molarity and would be used for molar volume.
- **Moles/1000 grams (D)**: This might refer to molality, which is based on the mass of the solvent, not the volume of the solution.
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