Answer:
M = 0.12 M
Explanation:
Given data:
Mass of NaNO₃ = 2.59 g
Volume of solution = 250 mL
Solution:
Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.
Formula:
Molarity = number of moles of solute / L of solution
Now we will calculate the number of moles.
Number of moles = mass/molar mass
Number of moles = 2.59 g/ 85 g/mol
Number of moles = 0.03 mol
Volume in Litters:
250 mL × 1 L/1000 mL
0.25 L
Molarity:
M = 0.03 mol/0.25 L
M = 0.12 mol/L
