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20 microliters of 1% H2O2 (weight by volume) was added to 2980 microliters of water to...

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Chemistry

20 microliters of 1% H2O2 (weight by volume) was added to 2980microliters of water to make 3000 microliters of solution.

(a) What is the concentration of H2O2 for this scenario?

(b) What is the concentration of H2O2 if 60 microliters of 1%H2O2 was added to 2940 microliters water?

(c) What is the concentration of H2O2 if 100 microliters of 1%H2O2 was added to 2900 microliters water?

Please show your work so I can replicate them in other similarsituations, thank you.

Answer & Explanation Solved by verified expert
4.4 Ratings (938 Votes)
Answer a Given 20 L 1 H2O2 weight by volume Volume of water 2980 L 1 H2O2 weight by volume in 20 L means 1 g of H2O2 in 100 mL We know 1 L 0001 mL So 20 L 0020 mL So 100 mL 10 g 0020 mL 00002 g of H2O2 So    See Answer
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