How much table salt must be dissolved in 200 m3 to obtain a 20% sodium chloride solution?
| July 3, 2021 | education
20% = 0.2, and the mass of 1 M3 is 1 ton of water, which means 0.2 = M in-va / (200 + M in-va), whence M in-va = 40 / 0.8 = 50 t …
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