Online College Courses for Credit



Author: swati nigam

•Explain, with illustrative examples, why pure substances are needed.
•Describe methods of separation and purification for the components of solid-solid, solid-liquid and liquid-liquid (miscible) mixtures.
•Describe techniques for separation and purification including use of a suitable solvent, filtration, crystallisation, simple distillation, fractional distillation and paper chromatography.

•Describe paper chromatography and interpret chromatograms.
•Deduce from the given melting point and boiling point, the identities of substances and their purity.

See More
Fast, Free College Credit

Developing Effective Teams

Let's Ride
*No strings attached. This college course is 100% free and is worth 1 semester credit.

29 Sophia partners guarantee credit transfer.

314 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 27 of Sophia’s online courses. Many different colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.