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Converting concentrations to find amount needed from stock Watch

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    Hi all really stuck on this question. Any help appreciated.

    I have 37% HCL stock solution. I want to know how much of this stock I need to produce 1L of 0.1M.

    I need this for my lab project so help will be immensely appreciated.
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    (Original post by Student21)
    Hi all really stuck on this question. Any help appreciated.

    I have 37% HCL stock solution. I want to know how much of this stock I need to produce 1L of 0.1M.

    I need this for my lab project so help will be immensely appreciated.
    I have to assume that it's 37% w/v.

    So that there is 37 g in 100 ml of solution

    So there is 370g in 1 litre of solution.

    To make a 0.1 M solution you need 3.646 g of HCl in 1 litre of solution.

    Hence you need to extract 3.646/370 litres of solution and make it up to 1 litre using distilled water.
 
 
 
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