What is the molarity of a solution prepared by dissolving 8.5 g NaCl in enough H2O to give 600 ml of solution?
To find the molarity of a solution, you need to know the moles of solute and the volume of the solution.
First, you need to calculate the moles of NaCl by using its molar mass. The molar mass of NaCl is 58.44 g/mol.
moles of NaCl = mass of NaCl / molar mass of NaCl
Substituting the values, we get:
moles of NaCl = 8.5 g / 58.44 g/mol
Next, we need to calculate the volume of the solution in liters (L). The given volume is 600 mL, so we convert it to liters by dividing by 1000.
volume of solution = 600 mL / 1000 mL/L
Now that we have the moles of NaCl and the volume of the solution in L, we can calculate the molarity using the formula:
Molarity (M) = moles of solute / volume of solution (in L)
Substituting the values, we get:
Molarity (M) = moles of NaCl / volume of solution
Now you can substitute the values you calculated to find the molarity.