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A solution is prepared by dissolving 8.83 g of Na2SO4 in enough water to make 225 ml of solution. Calculate the solution molarity.
Accepted Answer
Here's how to calculate the molarity of the solution:
1. Calculate the moles of Na2SO4:
- Molar mass of Na2SO4 = (2
22.99 g/mol) + (32.07 g/mol) + (4
16.00 g/mol) = 142.04 g/mol
- Moles of Na2SO4 = (8.83 g) / (142.04 g/mol) = 0.0622 mol
2. Convert the volume to liters:
- 225 mL = 0.225 L
3. Calculate the molarity:
- Molarity (M) = (Moles of solute) / (Liters of solution)
- Molarity = (0.0622 mol) / (0.225 L) = 0.276 M
Therefore, the molarity of the solution is 0.276 M.
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