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what is the molarity of a HCl solution if a 10.0 mL sample is neutralized by...

what is the molarity of a HCl solution if a 10.0 mL sample is neutralized by a 44.3 mL of a 0.111 molar solution

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what is the molarity of a HCl solution if a 10.0 mL sample is neutralized by a 44.3 mL of a 0.111 molar solution of Ba(OH)2

    Ba(OH)2(aq) + 2HCl(aq) -----------------> BaCl2(aq) + 2H2O(l)

     1mole               2 moles

HCl                                                       Ba(OH)2

M1   =                                                      M2 = 0.111M

V1 = 10ml                                               V2 = 44.3ml

n1 = 2                                                     n2 = 1

           M1V1/n1    =    M2V2/n2

               M1          = M2V2n1/V1n2

                                = 0.111*44.3*2/10*1

                                 = 0.983M

The molarity of HCl is 0.983M


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