A 25. 0ml hbr solution of unknown concentration is titrated with 0. 100m naoh. The equivalence point is reached upon the addition of 18. 88ml of base. What is the molar concentration of the hbr solution?.

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.