how much acid should be added to.200ml of 10% solution to strengthen it to one of 20% acid solution
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MARK AS BRAINLIEST ANSWER.
Step-by-step explanation:
→ Let x ml of acid be add to this solution.
→ The total volume is (200 + x), of which 20% is acid
→ The amount of acid in this solution is x + 60
→ 20(200+x) = x + 60
→ 4000+ 20x = x + 60
→ 20x - x = 60 - 4000
→ 19x = -3940
→ x = -3940/19
→ x = -207.3
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