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question

A potato peeling solution was found to be 2.56 M inNaOH (formula weight = 40.0 g/mole) at the end of the day. To operate, the solution must be at least 10 %NaOHby weight (100 gNaOHper 1000 g of solution) . What weight percent corresponds to 2.56 M? The density of a 2.56 M solution of NaOHis about 1.10 g/ml.

category

chemistry

options

  1. 13.8 % by weight
  2. 11.2 % by weight
  3. 5.0 % by weight
  4. 6.5 % by weight
  5. 8.5 % by weight
  6. 10 % by weight
  7. 14.5 % by weight
  8. 12 % by weight
  9. 7.7 % by weight
  10. 9.3 % by weight

src

stemez-Chemistry

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