Calculated the formality of NaCl solution, 5.85 g of which have been dissolved to form 250 ml of the given solution.
Question
Calculated the formality of NaCl solution, 5.85 g of which have been dissolved to form 250 ml of the given solution.
Solution
To calculate the formality of a NaCl solution, we need to know the number of moles of solute (NaCl) and the volume of the solution in liters.
Step 1: Calculate the number of moles of NaCl.
The molar mass of NaCl is approximately 58.5 g/mol. So, the number of moles of NaCl in 5.85 g is:
5.85 g / 58.5 g/mol = 0.1 mol
Step 2: Convert the volume of the solution from milliliters to liters.
250 ml = 0.25 L
Step 3: Calculate the formality.
Formality is defined as the number of moles of solute per liter of solution. So, the formality of the NaCl solution is:
0.1 mol / 0.25 L = 0.4 mol/L or 0.4 F
So, the formality of the NaCl solution is 0.4 F.
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