What is the molarity of a 250ml solution containing 16g of sulfur?

molarity= molesSulfur/literssolution

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To calculate the molarity of a solution, we need to know the number of moles of solute (in this case, sulfur) and the volume of the solution in liters.

Step 1: Convert the mass of sulfur to moles.
To do this, we need the molar mass of sulfur. The molar mass of sulfur is approximately 32.06 g/mol. We use this value to convert grams to moles:

16 g S × (1 mol S / 32.06 g S) = 0.499 mol S

Step 2: Convert the volume of the solution to liters.
The volume given is 250 mL. Since the molarity is measured in liters, the volume needs to be converted:

250 mL × (1 L / 1000 mL) = 0.250 L

Step 3: Calculate the molarity.
Molarity (M) is defined as moles of solute per liter of solution. We divide the moles of sulfur by the volume of the solution:

Molarity (M) = moles of solute / volume of solution
Molarity (M) = 0.499 mol S / 0.250 L = 1.996 M (rounded to three significant figures)

Therefore, the molarity of a 250 mL solution containing 16 g of sulfur is approximately 1.996 M.