[tex] \quad\hookrightarrow\quad \sf {0.262M }[/tex]
Molarity is used to measure the concentration of a solution , so it is also as molar concentration. It is denoted as M or Mol/L
We are given that :
The molar mass of magnesium chloride ( [tex] \sf MgCl_{2}[/tex] ) is 95.21 g / mol
We can calculate the molarity of the solution by dividing the number of moles of solute by volume of solvent in liter ,i.e:
[tex] \quad\longrightarrow\quad \sf {M = \dfrac{n}{V} }[/tex] ㅤㅤㅤ⸻( 1 )
Where,
We can calculate the number of moles by dividing the actual mass by its molar mass ,i.e:
[tex] \quad\longrightarrow\quad \sf { n = \dfrac{w}{m}}[/tex]ㅤㅤㅤ⸻ ( 2 )
Where,
Therefore,
[tex] \implies\quad \tt {n =\dfrac{w}{m} }[/tex]
[tex] \implies\quad \tt { n =\dfrac{5.35\: g}{95.21\: g /mol}}[/tex]
[tex] \implies\quad{\pmb{ \tt {n = 0.056 mol}} }[/tex]
Putting the values in equation ( 1 ):
[tex] \implies\quad \tt {M=\dfrac{n}{V} }[/tex]
[tex] \implies\quad \tt { M =\dfrac{0.056\:mol}{0.214\:L}}[/tex]
[tex] \implies\quad\underline{\pmb{ \tt { M = 0.262 \:M }}}[/tex]
