molarity


The molarity or molar concentration of a solute is defined as the number of moles of solute per liter of solution ( not per liter of solvent!): [What is a mole?] \text {Molarity}= \dfrac {\text {mol solute}} {\text {L of solution}} Molarity = L of solutionmol solute [Why is the volume of the solution different from the volume of the solvent?]



Molarity or molar concentration is the number of moles of solute per liter of solution, which can be calculated using the following equation: \text {Molarity}= \dfrac {\text {mol solute}} {\text {L of solution}} Molarity = L of solutionmol solute



13K views 2 years ago The relation between molarity (M) and molality (m) is given by : (p=density of solution (g/mL), `M_1`= molecular mass of solute)



The correct option is A 0.61 M. Let the mass of the solution be 100 g. So, 4.9 g of H3P O4 is present in 100 g of solution. Moles of H3P O4. given mass molar mass = 4.9 98 =0.05 moles. Density = mass of solution volume of solution. ⇒ volume of H3P O4 = 100 1.22= 81.97 mL.



Solution Verified by Toppr Correct option is C) Formula: Molarity= Volume of solution in litreNo of moles of solute Step 1: To find the mass of water in one liter. We know that, Density of water = 1g/ml or = 1kg/L Therefore, the mass of 1L of water will be: Mass= Density of water × Volume Mass=1 Lkg×1L Mass=1kg=1000g