What weight of 90 % and a 10% solution of sulphuric acid should be mixed to prepare 1600 g of its 40% solution?
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Answer:
Explanation:
0.9x + 160 - 0.1x = 640
0.8x=480
x=600 gm
600 gm 90 percent solution and 1000 gm 10 percent solution
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