A water solution contains 60% Na2S202 together with 1% soluble impurity. Upon cooling to 10°C, Na2S202 5 H20 crystallizes out. The solubility of this hydrate is 1.4lb Na2S202 5 H20/lb free water. The crystals removed carry asadhering solution 0.06 lb solution/lb crystals. When dried to remove the remaining water (but not the water of hydration), the final dry Na2S202 5 H20 crystals must not contain more than 0.1% impurity. To meet this specification, the original solution, before cooling, is further diluted with water. On the basis of 100 Ib of the original solution,calculate (a) the amount of water added before cooling, and (b) the percentage recoveryof the Na2S202 in the dried hydrated crystals

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Nutrient Growth Medium

It is a culture medium or nutrient broth for all kinds of microorganisms to grow properly and create their colony. This matrix provides support to increase the population of microbes through the method of cell proliferation. It is regarded as the food material for those organisms. It is a type of in vitro mechanism, in which the development of life is processed outside the host body. It can be solid, semi-solid, or liquid in nature. Different kinds of cells develop in different types of media.