20. Solving a chemistry problem
88. The electrical conductivity of sulfuric acid used in the technological process is 4.58 * 10-2 Ohm-2 * cm-1. The electrical conductivity of the available acid is 1.8*10-1 Ohm-1*cm-1. How many kilograms of this acid must be added to 500 liters of water to obtain the acid of the required concentration?
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