How do I go about solving this reaction?

Question

H2SO4 + NaCO3 = NaSO4 +CO2 + H2O

If 150.0g of sulfuric acid is spilled, what is the minimum number of sodium carbonate that have to be added to complete the reaction?

Answer 1

First, we need to correct the equation.
H2SO4 + Na2CO3 ==> Na2SO4 + CO2 + H2O

mols H2SO4 = 150 g/98 (molar mass H2SO4) = 1.53 moles H2SO4.
Using the coefficients in the balanced equation, convert moles H2SO4 to moles Na2CO3.
1.53 moles H2SO4 x (1 mole Na2CO3/1 mol H2SO4) = 1.53 x 1 = 1.53 moles Na2CO3.

Now convert moles Na2CO3 to grams. g = moles x molar mass.