chemistry

Please help.
Concentrated hydrochloric acid is a 38% w/w solution of HCL in water and has a density of 1.18g/ml. How many millilitres of concentrated hydrochloric acid are needed to prepare 500ml of a 1:200 w/v HCL solution?

My answer is 2.12ml. I'm not sure if its correct. Please help.

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asked by Peter
  1. Frankly, I don't know what 1:200 w/v HCl means.

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    posted by DrBob222
  2. 1:200 w/v means 1g in 200ml

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    posted by Peter

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