Category: Biochemistry 12
Percentage Solutions The percentage solution could be expressed in terms of weight percent (% w/w), volume percent (% v/v) and weight-to-volume percent (% w/v) units of solute present in …
Normality The concentration of a solution could also be expressed in terms of Normality. It is based on an alternate chemical unit of mass called the equivalent weight. The …
Molality The molal unit is not used nearly as frequently as the molar unit and is used in thermodynamic calculations where a temperature independent unit of concentration is needed. …
Molarity Molarity is based on the volume of solution containing the solute. Since density is a temperature dependent property a solution’s volume, and thus its molar concentration, changes with …
Equivalent Weight of an Acid In an acid base titration, the equivalence point is the volume of added base where the moles of –OH added (from the base) equal …
Preparation of NaOH Solutions of NaOH can be prepared by either dissolving solid NaOH pellets in water or by diluting a concentrated solution of NaOH. However, the exact concentration …
UNITS OF CONCENTRATION There are many ways to express concentrations. Concentration may be expressed several different ways and some of the more common concentration units are: 1. Equivalent weight …
GENERAL BIOCHEMISTRY INTRODUCTION Solutions of chemical reagents are a big part of biochemistry, biological and chemical based work. For a beginner of experimental procedure making solutions can also be …
