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March 29, 2017

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an auto mechanic spills 85 mL of 2.4 M H2SO4 solution from a rebuilt auto battery. how many mL of 1.2 M NaHCO3 must be poured on the spill to react completely with the sulfuric acid?

  • chemistry - ,

    Write the equation and balance it.
    H2SO4 + 2NaHCO3 ==> Na2SO4 + 2CO2 + 2H2O
    (I think that's balanced but check it out.)
    Convert 85 mL of 2.4 M H2SO4 to mols remembering that M x L = mols.
    Convert mols H2SO4 to mols NaHCO3 using the coefficients in the balanced equation.
    Then use M NaHCO3 = # mols/L. You know M of NaHCO3 and # mols, the only unknown is L.

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