19. Решение задачи по химии №001 979

1. From a sample of 0.2350 g of phosphorite, 0.2711 g of CaSO4 and 0.1693 g of Mg2P2O7 were obtained. Calculate the % content of CaO and P2O5 in phosphorite. Recalculate the results of the analysis to absolutely dry matter if the phosphorite contains 5.42% moisture.

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