Physical Chemistry Practicals (AQA A-Level 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 main aim of this practical?
What is the main aim of this practical?
To make a solution of known concentration
What type of balance is required for this practical?
What type of balance is required for this practical?
2 decimal place balance
What safety equipment should be worn when handling sodium hydrogensulfate?
What safety equipment should be worn when handling sodium hydrogensulfate?
Safety goggles and lab coat
Why is the sample bottle re-weighed after transferring the solid?
Why is the sample bottle re-weighed after transferring the solid?
To find exact mass used by difference
Approximately how much distilled water is initially added to the beaker?
Approximately how much distilled water is initially added to the beaker?
100 cm³
Where should the meniscus be when filling the volumetric flask to 250 cm³?
Where should the meniscus be when filling the volumetric flask to 250 cm³?
Bottom of meniscus at 250 cm³ mark
Which equipment must be rinsed with distilled water during the transfer step?
Which equipment must be rinsed with distilled water during the transfer step?
Beaker, glass rod, and funnel
What should be done after stoppering the volumetric flask?
What should be done after stoppering the volumetric flask?
Invert multiple times
Why might old anhydrous reagents lead to inaccurate results?
Why might old anhydrous reagents lead to inaccurate results?
They absorb moisture
How can percentage error in mass measurement be minimised?
How can percentage error in mass measurement be minimised?
Use a larger mass of solid