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posted by Peter .
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.

give the following word concetrated
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