he alkalinity of the unknown groundwaters A and B has been acquired by the dissolution of NaHCO3 and Na2CO3. Calculate how many grams of each of these minerals have dissolved per litre of groundwater. Amu Na=23, H=1, C=12, O=16. How can I calculate this? (the total alkalinity for ground water A= 1400, groundwater B= 700).

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Crystal Lattices and Unit Cell

Consider a crystal. The regular and repeating pattern of constituent particles is the most distinguishing feature of crystalline solids. A crystal lattice is formed when these particles are replaced with representative points. The three-dimensional arrangement of constituent particles is known as a crystal lattice. Unit cell is that the smallest portion of a space lattice which when repeated in several directions, generate the whole lattice. Unit cell is a building block of a lattice. It is the smallest unit of cell.