Q.
A solution is prepared by dissolving 24.5 g of sodium hydroxide in distilled water to give 1L solution. The molarity of NaOH in the solution is
(Given, that molar mass of NaOH $= \ 40.0\ g\ {mol}^{- 1}$)
A) 1000 g of solvent
B) 1 L of solvent
C) 1 L of solution
D) 1000 g of solution
Explanation
(c)
Molarity =$\frac{moles\ of\ solute\ }{V\ of\ soution\ in\ litre\ }$
$\therefore\$Molar solution means 1 mole of solute is present in 1 L of solution.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.