Reaction Yield (HSC SSCE Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the formula for calculating percentage yield?
What is the formula for calculating percentage yield?
(Actual mass/Theoretical mass) × 100%
What effect do catalysts have on the yield of a reaction?
What effect do catalysts have on the yield of a reaction?
No effect on yield, only on rate
Why does removing product as it forms increase yield?
Why does removing product as it forms increase yield?
Shifts equilibrium right via Le Chatelier
For an exothermic reaction, what temperature effect increases yield?
For an exothermic reaction, what temperature effect increases yield?
Lower temperature favours forward reaction
Increasing pressure favours which side in a gaseous equilibrium?
Increasing pressure favours which side in a gaseous equilibrium?
Side with fewer gas molecules
What catalyst is used in step 2 of the contact process?
What catalyst is used in step 2 of the contact process?
Vanadium oxide ()
What pressure is used in the Haber process?
What pressure is used in the Haber process?
Approximately 200 atm
In the Haber process, how many gas molecules form from reactants?
In the Haber process, how many gas molecules form from reactants?
2 molecules form from 4 molecules
Which purity grade is required for pharmaceutical production?
Which purity grade is required for pharmaceutical production?
Pharmacopoeia grade
When comparing ratios to find limiting reactant, what does AR > SR indicate?
When comparing ratios to find limiting reactant, what does AR > SR indicate?
Denominator reactant is limiting