Page 24 - Pharmaceutical_Analytical_Chemistry_1_Theoretical_Notes_Level_1 2024-2025
P. 24

Mansoura National University
            Pharm D-Clinical Pharmacy Program                 Level 1             Pharm. Anal. Chem. 1 (PC 101)




                                      ▪  The branch of science that deals with chemicals.


                What is               ▪  Chemicals include all the day-to-day things you touch, see, and
              chemistry?                  smell.

                                      ▪  Chemicals are everywhere (except in the vacuum).


                                      ▪  Chemicals are composed of different substances (substance

                                          means chemical material of which an object is composed e.g.

                                          ice is composed of substance water, or chemical material

               What are                   water).

               chemicals              ▪  Despite the benefits of chemistry, we have to be careful in

            composed of?                  dealing with chemicals.

                                      ▪  Many chemicals are toxic, others are potential cancer

                                          producers. Therefore, chemicals must be handled with

                                          control.

                                      ▪  Solvent: A substance that dissolves other materials to form a

                                          solution.

                                      ▪  Solute: A substance that dissolves in a solvent.

                                      ▪  Solution: A homogenous mixture of one or more solutes
                Solution                  dissolved in a solvent.
             terminology
                                   ❖ Concentrated solution: has a relatively large proportion of

                                       solute to solvent.

                                   ❖ Diluted solution: has a relatively smaller proportion of solute to

                                       solvent.







                                                              2
   19   20   21   22   23   24   25   26   27   28   29