Question

A. Predict the products and balance the equation for the following neutralization reaction:

NaOH (aq) + H2SO4 (aq) ?

B.How many grams of H2SO4 are required to neutralize (react with) 3.45 grams of NaOH?

C.How many grams of the salt product are produced?

Please label answers clearly with corresponding letters and show work!

Answer 1

Part a

The balanced reaction

H2SO4 (aq ) + 4 NaOH (aq) ? 3 H2O (l) + 2 Na2SO4 (aq)

Part b

Moles of NaOH = mass/molecular weight

= 3.45g / 40g/mol

= 0.08625 mol

4 mol NaOH reacts with = 1 mol H2SO4

0.08625 mol NaOH reacts with = 0.08625/4 = 0.02156 mol H2SO4

Mass of H2SO4 = moles x molecular weight

= 0.02156 mol x 98 g/mol

= 2.11 g

Part c

Moles of Na2SO4 produced

= 2 mol Na2SO4 x 0.08625 mol NaOH / 4 mol NaOH

= 0.043125 mol

Mass of Na2SO4 = moles x molecular weight

= 0.043125 mol x 142.04 g/mol

= 6.13 g