Asked by kim
                in a lab there is a spill of 47.5ml of .500 mol/l NaOH how many grams of Sulfuric acid is needed to neutralizethe spill
            
            
        Answers
                    Answered by
            Damon
            
    You need to know how many moles of H2SO4 per liter.
    
                    Answered by
            DrBob222
            
    You can get at the grams another way without knowing the concn of H2SO4. You need to know concn IF we wanted to know the volume of H2SO4 needed; however, we only need to know grams. That is done as follows:
2NaOH + H2SO4 ==> Na2SO4 + 2H2O
mols NaOH = M x L = ?
Use the coefficients to convert mols NaOH to mols H2SO4. Therefore,
mols H2SO4 = 1/2 x mols NaOH
Then mols H2SO4 = grams H2SO4/molar mass H2SO4. You know molar mass and you know mols, substitute and solve for grams H2SO4.
    
2NaOH + H2SO4 ==> Na2SO4 + 2H2O
mols NaOH = M x L = ?
Use the coefficients to convert mols NaOH to mols H2SO4. Therefore,
mols H2SO4 = 1/2 x mols NaOH
Then mols H2SO4 = grams H2SO4/molar mass H2SO4. You know molar mass and you know mols, substitute and solve for grams H2SO4.
                    Answered by
            Damon
            
    Sorry. I did not read carefully enough.
    
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