6 – Preparing Sodium Carbonate (LC 2027) (Leaving Cert Chemistry): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What does it mean that sodium carbonate is non-hygroscopic?
What does it mean that sodium carbonate is non-hygroscopic?
It doesn't absorb moisture from air
Why must deionised water be used throughout the experiment?
Why must deionised water be used throughout the experiment?
Tap water contains dissolved ions
Where should you read the meniscus when filling the volumetric flask?
Where should you read the meniscus when filling the volumetric flask?
Bottom of curved surface at eye level
How many times should you invert the volumetric flask to mix the solution?
How many times should you invert the volumetric flask to mix the solution?
Approximately 20 times
Why must you wash the beaker, rod and funnel into the flask?
Why must you wash the beaker, rod and funnel into the flask?
To ensure no material is lost
What must a primary standard satisfy?
What must a primary standard satisfy?
ALL of its characteristic criteria
What minimum accuracy must the electronic balance have?
What minimum accuracy must the electronic balance have?
0.001 g
What is the molecular mass of ?
What is the molecular mass of ?
106 g/mol
What concentration results from 2.65 g in 250 ?
What concentration results from 2.65 g in 250 ?
0.100 mol/L
Why wash the clock glass with deionised water into the beaker?
Why wash the clock glass with deionised water into the beaker?
To ensure no material is lost
How should you mix the solution in the volumetric flask?
How should you mix the solution in the volumetric flask?
Invert rather than shake
At what level should your eye be when reading the meniscus?
At what level should your eye be when reading the meniscus?
Level with the graduation mark
