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March 25, 2017

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I have liquid concentrated HCl (37%w/w)
To prepare 100ml of 10g/L HCl as a solvent medium, is it acceptable to just weigh 1g of liquid conc HCl and dilute to 100ml with water?
What volume of conc HCl should we use to make 100ml of 10g/L HCl?

  • Chemistry - ,

    I don't think so. 37% w/w HCl has a density of 1.19 (you can look on the bottle for specific gravity and it may be listed as 1.18 or so). So you have
    1000 mL x 1.19 g/mL x 0.37 = approximately 440 g in that 1 L.
    If you weigh 1 g of the concd acid that will give you 0.37 g HCl and that isn't the equivalent of 10 g HCl/L.

  • Chemistry - ,

    If 45.5 mL of He at 25.0°C and 101.3 kPa were heated to 75.0°C, what would be the volume?

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