Question

(a) Difference between suspension and colloidal solution.
(b) Calculate the mass of water and mass of glucose required to make 250 g of
40% solution of glucose.
(c) Classify the following things into pure substance and mixture
Things are : Cold drink, 24 carat gold, alloy and water.

Answer 1

Answer:

here is the answer:-

a] A colloid is a homogenous non-crystalline substance consisting of large molecules or ultramicroscopic particles of one substance dispersed through a second substance.  A common method of classifying colloids is based on the phase of the dispersed substance and what phase it is dispersed in. Colloids include: gels, sols, aerosols and emulsions.  In colloids particles cannot be separated out by ordinary filtering or centrifuging like those in a suspension..

A suspension is a heterogeneous mixture in which some of the particles settle out of the mixture upon standing. The particles in a suspension are usually larger than those of a solution; therefore gravity is able to pull them down out of the dispersion medium (water).

c] cold drink is a mixture,24 gold carat is a substance..

Explanation: