2. For Mo Kα radiation of 10.711 Å, the mass absorption coefficients for K, I, H and O are 16.7, 39.2, 0.0 and 1.50 cm2/g, respectively. Calculate the mass absorption coefficient of a solution prepared by mixing 11.00 g of KI with 89.00 g of water.
Answer. 4.92 cm2/g

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