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25cm3 of a solution of NaOH required 28cm3 of 1.0mol/dm3 H2SO4 to neutralise it:

a) write an equation for the reaction.
b) how many molesof H2SO4 were needed?
c) how many moles of NaOH were thus nuetralised?

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  1. 2NaOH + H2SO4 ==> Na2SO4 + 2H2O

    I think for (b) you means how many mols H2SO4 were used. All of ot was meeded.
    mols H2SO4 = M x L = ?

    (c) Using the coefficients in the balanced equation, convert mols H2SO4 you had to mols NaOH neutralized.

    (d) usually these problems want you to calculate the M of the NaOH.
    That's M NaOH = mols NaOH/L NaOH

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