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masha68 [24]
3 years ago
11

How much 30% acid solution should be added to 10% acid solution to make 100 mL of a 12% acid solution?

Mathematics
1 answer:
viktelen [127]3 years ago
3 0
20x = 2*100
x = 10 ml (amt of 30% solution needed)
100-x = 90 ml (amt of 10% solution needed)

Very hard but I hope it helps
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