A solution containing 2 g of a non-volatile solute in 20 g of water boils at 373.52 K. The molecular mass of the solute is ------- g mol (Nearest integer).
Given: Water boils at 373 K, for water = 0.52 K kg mol.
When solving boiling point elevation problems, always ensure the masses are converted into proper units (grams to kilograms) and the molality formula is applied correctly. Use the given values of Kb and ∆Tb to calculate the molar mass of the solute accurately.
Step 1: Boiling Point Elevation
The elevation in boiling point () is given as:
Step 2: Use the Boiling Point Elevation Formula
The boiling point elevation is related to molality () by:
Substitute :
Step 3: Solve for Molar Mass
Simplify:
Conclusion: The molecular mass of the solute is .
Match the following List-I with List-II and choose the correct option: List-I (Compounds) | List-II (Shape and Hybridisation) (A) PF (I) Tetrahedral and sp (B) SF (III) Octahedral and spd (C) Ni(CO) (I) Tetrahedral and sp (D) [PtCl] (II) Square planar and dsp
Let A be a 3 × 3 matrix such that . If , then is equal to:
A solution is a homogeneous mixture of two or more components in which the particle size is smaller than 1 nm.
For example, salt and sugar is a good illustration of a solution. A solution can be categorized into several components.
The solutions can be classified into three types:
On the basis of the amount of solute dissolved in a solvent, solutions are divided into the following types: