Nina Z. answered • 10/17/19
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The neutralization reaction is: NaOH + HCl -----> NaCl + H2O
the mole ratio of acid and base is 1:1, so you can use this formula to solve the unknown MaVa = MbVb
the calculation is: 0.2 M x Va = 50 mL x 0.8 M Va = 200 mL
