Question

Determine the theorical yield (in grams) of strontium sulfate. What is your limiting reactant and excess...

Determine the theorical yield (in grams) of strontium sulfate. What is your limiting reactant and excess reactant?
given 2.27×10^-3 mol Na2SO4 and 2.5×10^-3 mol SrCl2

Homework Answers

Answer #1

The reaction of Na2SO4 and SrCl2 are following:

Na2SO4 + SrCl2 -- > SrSO4 + 2NaCl

Given that moles of SrCl2: 2.5×10^-3 mol SrCl2

Na2SO4: 2.27×10^-3 mol Na2SO4

SrCl2 due to following reasons:

  1. It completely reacted in the reaction.
  2. It determines the amount of the product in mol.

2.5×10^-3 mol SrCl2 * 1 mole SrSO4/ 1 Mole SrCl2

2.5×10^-3 mol SrSO4

the theatrical yield (in grams) of strontium sulfate= Number of moles* molar mass

= 2.5×10^-3 mol SrSO4*183.68 g/mol

= 0.4592 g SrSO4

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