Answer:
0.31M
Explanation:
Given parameters:
Mass of NaNO₃ = 130g
Volume of solution = 5L
Molar mass of NaNO₃ = 23 + 14 + 3(16) = 85g/mol
Unknown:
Molarity of solution = ?
Solution:
Molarity is one of the ways of expressing concentration.
It is defined as the number of moles in a volume of solution.
Molarity = [tex]\frac{number of moles}{volume}[/tex]
let us find the number of moles of NaNO₃;
Number of moles = [tex]\frac{mass}{molar mass}[/tex] = [tex]\frac{130}{85}[/tex] = 1.53moles
Molarity of solution = [tex]\frac{1.53}{5}[/tex] = 0.31M
