-Hemopoiesis: Red bone marrow of ribs, sternum and centra of thoracic vertebrae (make red blood cells, white blood cells and platelets) breast bone (sternum) Located anteriorly and midsagitally in thoracic cage. Parts of the sternum -Manubrium (upper part) articulates with clavicle and first pair ribs through first costal cartilages
a formula unit is the symbolic representation of an ionic compound or network solid and a molecular formula is the symbolic representation of a molecular compound see the web links and related questions links for more information
Mole and number of formula units. One mole of a substance is its gram formula mass (GFM) . One mole of a substance contains 6.02 x 10 23 formula units. This number is known as the Avogadro constant. The Avogadro constant can be found in the SQA data booklet, and is expressed as 6.02 x 10 23 mol -1.The term formula unit is a general term that relates to the type of particles that make up a substance.ne mole of a substance is its gram formula mass (GFM) . One mole of a substance contains 6.02 x 10 23 formula units. This number is known as the Avogadro constant.