146. Solving a chemistry problem

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3. How much of the K 2 Cr 2 O 7 electrolyte needs to be added to the 10? Cm 3 of the Al2O3 sol to cause it to coagulate? The concentration of the electrolyte is 0.01 kmol / m 3; the coagulation threshold of the sol is P = 0.63 × 10 -3 kmol / m 3.

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