47. Solving a chemistry problem
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5. A weighed portion of sodium tetraborate 1.6690 g is dissolved in a 200 ml volumetric flask. For titration of 20.00 ml of the resulting solution, 17.50 ml of H2SO4 solution (TH2SO4/KOH=0.002806) is consumed. Prove that sodium tetraborate crystallizes with 10 water molecules.
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