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6. Calculate the amount of lime and soda required for softening of 15,000 liters of water which analyzed as follows: temporary hardness =20 ppm, permanent

6. Calculate the amount of lime and soda required for softening of 15,000 liters of water which analyzed as follows: temporary hardness =20 ppm, permanent hardness =15 ppm and permanent magnesium hardness =10ppm

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