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OpenStudy (anonymous):
A piece of zinc is added to 250mL of 1,20 M HCl solution .after zinc totally reacted , 25 mL of the solution requires 12.50 mL only of 1.60M NaOH to neutralise the acid. Calculate the mass of zinc.
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OpenStudy (anonymous):
find the mole number for NaoH ( which totally reacted with HCl) hence, the mole NaoH reacted with mole of HCl = mole of zince mass of zinc = atomic weight of zinc/mole of zinc
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