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Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g)
If 2.00 g of Mg reacts completely with 50.0 mL of HCl solution, what is the molarity of the HCl solution?

  • Chemistry - ,

    One needs twice the number of moles of HCl as Mg.

    how many moles of Mg is there in 2g?

    moles of HCL=twiceMolesMg=.050*Molarity
    solve for molarity

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