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Please help? I don't know how to solve for concentration:

If it requires 25.0 milliliters of 1.0 molar HCl to neutralize 45.0 milliliters of NaOH, what is the concentration of the NaOH solution?


Balanced equation: NaOH + HCl yields NaCl + H2O


0.56 M NaOH


0.82 M NaOH


1.1 M NaOH


1.8 M NaOH

Verified Answer :

syed514

n = c x v
   = 1 x 0.025
    = 0.025 moles
    = n

NaOH = n/v
           = 0.025/0.045
           = 0.56M

 So is it A
 0.56 M NaOH

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