The molarity of the solution is = 5.12M
The molarity of a solution is the measures the number of moles of a solute per liter of a solution.
Molarity = moles solute/Liter solution
Molar mass of sodium (Na) = 23g
Molar mass of chlorine (Cl) = 35.5g
Molar mass of NaCl = 23 + 35.5 = 58.5g/mol
To calculate the quantity of moles in 150g of NaCl,
1mol = 58.5g
xmol = 150g
Cross multiply,
xmol= 150×1/58.5
= 2.56mol
To convert 500mL to Liters,
500/1000 = 0.5 Liters
Substituting into the equation, Molarity = moles solute/Liter solution
Molarity= 2.56/ 0.5 = 5.12M
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