Problem 3: Mixing of battery (Sulfuric) Acid: You are asked to prepare a batch of 18.63% battery acid as follows. A tank of old weak battery acid ( H2SO4 ) solution contains 12.43%H2SO4 (the remainder is pure water). If 200kg of 77.7%H2SO4 is added to the tank, and the final solution is to be 18.63%H2SO4, how many kilograms of battery acid have been made? See Figure E8.4. Answers: F=1905.5kg&P=2105.5kg