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4. The dilute acid containing 25% H,SO, is concentrated by commercial grade H,SO, containing 98% H,SO, to obtain desired acid containing 65% H,SO4. Find

4. The dilute acid containing 25% H,SO, is concentrated by commercial grade H,SO, containing 98% H,SO, to obtain desired acid containing 65% H,SO4. Find the quantitates of the acid required to make 1000 kg of desired acid.

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