Question

commercially available concentrated hydrochloric acid is 37.0% w/w HCl. Its density is 1.18 g/mL. Using this information calculate (a) the molarity of concentrated HCl, and (b) the mass and volume (in mL) of solution containing 0.315 moles of HCl.

Answer 1

1000 mL x 1.18 g/mL x 0.37 x (1/36.5) = ? mols/L = ? M concd HCl.


b.
M = mol/L. You know mols and M, solve for L and convert to mL.
mass = volume x density. You know density and volume, solve for mass.

Answer 2

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