 Site Navigation                            Chemistry: Stoichiometry

 2 NaOH + H2SO4 --> 2 H2O + Na2SO4 Compound Molar Masses (g/mole) NaOH 40.0 H2SO4 98.1 H2O 18.0 Na2SO4 142

Example:

If the reaction starts with 50.0g of NaOH, how many grams of Na2SO4 will form?

Solution: General Questions
 If the reaction consumes 100 g of NaOH, how many grams of Na2SO4 should form?
 1

 If 475 g of H2O form, predict how many grams of NaOH must have been consumed?
 2

 The reaction generates 35.0 g of Na2SO4. How many grams of H2SO4 should have been used up?
 3

 If 25.0 g of NaOH is used, how many grams of H2SO4 should react?
 4

Question Group #2
Directions and/or Common Information: A reaction produces 100 g of H2O.
 How many grams of NaOH will be consumed?
 1

 How many grams of H2SO4 will be consumed?
 2

 If the law of conservation of mass holds true, the total mass of the reactants (NaOH and H2SO4) should equal the total mass of the products (H2O and Na2SO4). Without doing a stoichiometry problem, predict how many grams of Na2SO4 should form.
 3

E Saylor

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