Answer:
[ HClO₃] = 1.93M
Step-by-step explanation:
X % by mass, means that in 100 g of solution, we have X g of solute.
In this case, 14.1 g of HClO₃ are contained in 100 g of solution.
Density always referrs to solution. Let's calculate the volume of solution.
Solution density = Solution mass / Solution volume
1.1690 g/mL = 100 g / Solution volume
Solution volume = 100 g /1.1690 g/mL → 86.2 mL.
For molarity we must get moles of solute and volume of solution (L), because molarity is mol/L
Let's convert the mL of solution in L
86.2 mL . 1L / 1000mL = 0.0862 L
Now, let's determine the moles of solute. (Mass / Molar mass)
14.1 g / 84.45 g/mol = 0.167 moles
Molarity is mol/L → 0.167 moles / 0.0862 L = 1.93M