Molarity
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Molarity is defined as the number of moles of solute per liter of solution. An example problem calculates the molarity of a solution made by dissolving 40 grams of Epsom salts (MgSO4) in 8 liters of water. The molarity is found to be 0.042M by first calculating the moles of MgSO4 dissolved and then dividing by the total liters of solution.
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Molarity
- 1. In a Spa
- 2. Molarity Molarity is the number of moles of solute per liter of solution molarity = moles of solute liters of solution
- 3. Example When people get pedicures, bath salts are dissolved in the water. If 40 grams of Epsom salts, MgSO4, is dissolved in 8 liters of water, what is the molarity?
- 4. Answer 40 g MgSO4 = 0.166 moles 0.332 moles/ 8 liters = 0.042 M Molarity = 0.042