Question

H2SO4 + 2NaOH --> H2O + Na2SO4

How many molecules of water(H2O) are produced if 2.0g of sodium sulfate(Na2SO4) are produced in the reaction above?

A) 6.77 x 1022 molecules
B) 8.5 x 1021 molecules

Answer 1

The amount of water produced in a chemical reaction depends on the number of moles of the reactants, their stoichiometry, and the reaction conditions. The number of moles of sodium sulfate produced (2.0 g) does not provide information about the number of moles of hydrogen sulfate and sodium hydroxide used in the reaction or about the reaction conditions.