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0.224g sample that contained only bacl2 and kbr required 19.7ml of 0.1M ango3 to reach the end point. Calculate the percentage of each compound present in the sample. The right answer bacl2 32.4% KBR 67.7%
You need to use 3 solution of drug H containing respectively 50%, 20% and 5% to make 600ml of 10% drug H. How much of the 50% with you use?

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